When you attempt to urinate or defecate due to the current convenience of a rest room and knowing that access to one will not be available for a long time there after.
(On a road trip)
"OK, we are making a rest-stop at this gas station. This is your last chance to use a rest room for 300 miles"
"I don't really have to go, but I better squeeze one out while I have the chance'
Buy a
squeeze one out
mug!
