what's with the white bowl?

i go outside to go to the bathroom, but my human family goes inside. (i take that back, sometimes my brother pees outside) anyway, most of the time they go and sit on this white bowl in one of the rooms. i always follow my mom in there just to see what she's doing. dad doesn't let me in when he goes. he's mean like that.

i don't see why i have to go outside and they can go inside. they sure get mad when i pee on the floor. i just don't see the difference.

-*woof*