Apparently not shitting in your own toilet is pretty much the worst thing you can do. So, with the exception of people like wishpig, Lucien and marckee (who must have a terrible time on imodium when they go away for a few days), where else have you dumped your load?

ATP Chalet
Train
Pub
Music venue
Friend's place
Immediate family's place
Work
Plane
Hotel
Hostel
Uni department
School
Café
Restaurant

There are probably more...