For the next 72 hours you'd be better off if you carried your own portable toilet with you because you will spend most of that time on the pot and the rest of the time in a fetal position. Now you realize why Mexico never had a navy. You're just sitting there in a state of sublime peace when all of a sudden you emit a group of noisy gassy bursts that break the silence like machine gun fire. You feel a noisy one coming on. Relatives, friends or work mates are within earshot, so you must employ some clever techniques to cover the disgusting sounds you are about to emit.
Timing is obviously very important here.
You have enough on your mind when you're in the bathroom without worrying about a lockless door and someone bursting in to find you in mid-dump mode. One way is to strategically place your foot against the door. For the most part you've completed your dump, but there's one little morsel that refuses to drop off. You're getting impatient. Someone else wants to use your stall.