I am in a unique position to help you out! I know how to say “where are my pants?” in at least ten languages.
You mean most people stay fully dressed at home? Whatever for? Unless I know I’m going to be going back out shortly (say, within 30 minutes), all I’ll be wearing is a long shirt (about knee length) and boxers.
Prove it.
And while we’re at it, you prove it, too.
Homer Simpson voice: I seem to have misplaced my pants.
The Simpsons have a quote for everything.
On hot days, I walk around my apartment in panties and long T-shirts. I put on a pair of shorts if the doorbell rings or I hear the ice cream man.
Now I feel like a fraud for posting while wearing pants. PWWP. Oh the shame!!
As far as I know, getting at least partially undressed is more normal, judging by the people who seem astonished that all I take off when I get home are my shoes. I don’t take anything else off until time for my evening shower.
You couldn’t pay me to sit around in my underwear.
You could pay me to sit around in my underwear. But then again, I usually do it anyway for free.
“I’m not wearing pants. My pants split and now I’m not wearing pants”-Franklin Sherman
Well, I can tell you one thing. This is going to change the way I view your posts.
In three odd years and over 2,000 posts, I have never, ever even once posted here with pants on.
I had my green tea earlier today in the altogether. Now however I’m drinking coffee and fully dressed except for bare feet. Strangely, except for wearing a bathrobe when I first get up, I’ve never really done the hanging-around-the-house-in-my-underwear thing. I tend to be either fully dressed like now, or fully undressed like earlier.
I am wearing pants.
I am not, however, wearing underpants.
Another casualty of laundry day.
For some reason, from a few of our earlier meetings here on the boards, I’m going to assume that you don’t mind the change of view. 
That probably would be one of the safer assumptions, yes.
I admit nothing.
This looks like a job for emergency pants! 