Closed. Open is apparently an invitation to the two male cats to go in and pee on the bathmat.
I live alone in a house with four toilets (2 full baths, 2 half baths). From downstairs to upstairs:[ul]
[li]the door to the basement half bath is always open; it’s the least-used bathroom in the house[/li][li]the door to the main level half bath is usually mostly closed (but never all the way, unless a guest is using it); guests know it’s there when I tell them[/li][li]the door to the upstairs hallway full bath is always open; it’s the second least-used bathroom in the house[/li][li]the door to the master full bath is always open (at first I would close it while showering on cold mornings, like Smeghead mentions, but for some reason that bathroom gets hot even when there’s snow on the ground outside)[/ul][/li]
That happened to me twice in my old apartment: after the second time, I got management’s approval to have a chain installed on the front door (they even installed it, at no charge). 
The exhaust fans in my (soon to be ex-) apartment “exhaust” back in to the bathroom, so the default position is for the door to be open, unless #2 is involved. Otherwise mold can start getting to be an issue.
The bathroom door in my apartment, if the room is unoccupied, is left open. This is because the doorknob on the hallway side doesn’t work too well. 
At home, it’s usually open, unless someone in there wants it closed, or if laundry is being done to cut down on noise (a small house and a noisy washing machine are not a good mix). At my apartment, it’s about the same, only there’s no washing machine in the bathrooms here. Although one door being open usually ends up covering 2/3 of the doorway of the other.
Our flat has two bathrooms, the loo and the shower/sink.
The loo one is very small and your knees/ass push the door nearly closed as soon as you start your business. We never close it further than that, because the door completely blocks the the view of the toilet and its user from view anyway.
The shower/sink is always open, except while showering when we close it to keep the heat/steam in.
I have to leave it open. My pee smells like lavender in a newly mown field, or sometimes like fresh laundry off an outdoor clothesline - * in the mountains*! Except for Friday which is sauerkraut and bratwurst day, I open the bathroom door and use a powerful fan to blow the odor out into the house. It aroma-therapies the whole house!
Heh… well, I moved a couple months ago and the new apt has a second inside-only lock on the door, so it hasn’t happened here… but I still have the old habit.
I usually shut my bathroom doors. I started shutting them to keep the dogs from drinking out of the toilet (not really such a big problem but it grossed me out) and emptying the trash (a bigger problem), and it’s become a habit now.
Unfortunately, my dogs have learned to open the bathroom doors, so I have to keep the toilet lid shut and the trashcans stored in the cupboards under the sink. But I still close the doors out of habit. They stay closed now, since the dogs are no longer interested now that the goodies have been taken away.
Open when unoccupied, except when my 2 yo nephew is about.
One wonders when and if the parents of said nephew ever plan on teaching him anything, as opposed to locking and closing all bathroom, kitchen and bedroom doors constantly, but that’s a different topic. :rolleyes:
My bathroom doors are always left open when unoccupied. The open doors also let the air circulate more easily.
The door to our bathroom is inside the bedroom. Seems to be a common thing in one-bedroom apartments. Sucks when you have houseguests, though.
Anyway, since I spend very little time in the bedroom most of the day, I don’t know whether the door is open or closed right now. I don’t really care. But if I AM in the bedroom, going to sleep, the door MUST be shut or else the ghosts will climb out of the mirror and come into the bedroom and eat me.
Open - - I was trapped in a bathroom for a day and a half following an earthquake. It was miserable, I can tell you. I was using the facility when the earthquake hit. Since then, if it is possible I leave the bathroom door at least slightly ajar.
I realize the chances of it happening again are outrageously high, but once burned, etc.
TV
Probably should read “outrageously slim”
but you can see what a little phobia can do.
Since the latch on the door doesn’t catch, it doesn’t really matter if the door is open or closed. Besides, I haven’t had any privacy in the bathroom since the kidlet became mobile.
Robin
We actually looked at a house that had no door on the bathroom in the master bedroom suite. It hadn’t been taken off its hinges, it had been designed that way. IIRC the entry was too wide to put a door even if one had wanted to.
Woulda made this whole debate moot.
In the house we do live in we are open door people.
Ours is almost always open. No children or pets, just myself and my spouse, so it’s not like we haven’t seen it all anyway. Even when the door is closed (generally for showering or for extremely personal or disgusting use of the room) it is usually only “pulled to” as the high humidity here makes the door stick in the jamb no matter how much I sand at the bastard.
The last time I visited my parents it took me a while to realize they had a new habit of closing the door because of toddling grandchildren. The door was closed when I walked by, and then when I walked by later, and then later… I eventually used the basement bathroom (no toddlers habitually in basement) before realizing that the upstairs bathroom was open the whole time!
Same here. I hate when my daughter opens the door while I’m in the shower. “You’re letting all the heat out!!!”
At school and at home, unless the activities in the bathroom involve nudity or toilet use, the door is left open.
I have one roommate who will knock on the door, as is proper, but when the bathroom occupant says, “Don’t come in!” she comes in anyway.
Ours is always open, although our 6 year old has an emerging knack for modesty. I can respect that.
Ahh, Kitties make it a different issue. Cats do not like closed doors.
Years ago, I had a cat that had a particular fascination with running water. We had at first decided not to name him. But my roomates and I discovered we had all experienced standing at the toilet and having the cat pop up from between our ankles to look into the toilet. and yes, All three of us hit him on the back of the head with our business.
We named him Plunger and started closing the door.