When I run out of toilet paper and there isn't any under the sink I shout "Emergency!" until someone brings me a roll. I have an obsession with using too much TP so when I think I have enough I really don't. Also, sometimes I've just GTG right away and don't have time to search for some.

But prepare for a really rough smell. Maybe hold your nose.
If no shower available, you're just SOL.
WHAT THE FUCK IS GOING ON!! IS THERE A FIRE??
No, i just ran outta toilet paper. could you get me a roll? lol :)