1. If there are other guests using the rest area, they ALL know what your intentions are (#1 or #2)
2. Having to ask your neighbor to grab you some TP from the wall.
3. If you do have to do the "doo", how much do you grab?
"I don't want to be wasteful, take sparingly?"
"Everyone is looking at me, they all know. Crap."
Ohhhhhh booms. The end.