How’s that for MPSIMS?
When I can see my facial contortions, it makes me giggle, thereby making an already enjoyable experience that much more enjoyable.
Try it sometime, even if you have to use a handheld mirror.
That was MORE INFORMATION THAN I NEEDED, DUDE. 
I propose a new forum based on just that concept. If not here, perhaps at Rotten.com? Why, then we could have pictures, too! Live webcam from WIGGUM’s bathroom!
You should visit the bathroom at the newspaper where I work, WIGGUM. It used to be a plumbing business, and the bathroom is completely done in mirrored tiles. You can not only watch yourself pooping, but you can watch yourself from several exciting angles.
Snoopy, one of my HS friends’ dad was a contractor. His bathroom was covered in mirrors. Mirrors everywhere. Eventually all her male friends complained enough that he took them all down. Who wants to watch yourself pee? I mean, I could go for watching other people pee, but not myself. 
–Tim
I’ve never been one to say “no” to mirrors----I mean, THAT’S entertainment, but I was thinking more along the lines of another room at my place…
There used to be a “Please be neat – put down the seat” sign placed on the wall in just the right spot so that it blocked the average guy from having to look at his schlong as he peed. I was so grateful for the sign that I made sure to routinely follow its request. But the sign is gone. Maybe I oughta make a new one.
Sometimes I tape up a newspaper next to the toilet when I am pooping. I mean, I don’t need a life-size reflection of my grunting face staring right back at me.
I’m pretty much into the head shot.
Anything below that and it would weird me out (Jeez, I’m not that deviant!!) On real strainers I like to see the bulge of veins in my temples, the beads of sweat on my forehead, the overbit lip, and the slight crimson hue of my face followed by the look of sweet relief in a job well done.
Please don’t tell us what it’s like when you beat off…
You people don’t like to see your own schlong? I don’t mind peeing infront of a mirror at all. I rather enjoy the view!
(If the sight of your own naked body turns you on, are you gay? Or just vain?)
Now… pooping in front of a mirror is someting else completely. That, I would not like to do.