If ever I am drinking a liquid and I spill it (which happens about 95% of the time) there is a 96% chance that the liquid will end up in my "crotch" area.
Another common problem is that I go to wash my hands in the bathroom, or I'm just using a sink in general, and water on the counter gets on my pants, also in the "crotch" area.
A recent wetting, caused by leaning against a counter while filling up my water bottle
Anyway, it's a very embarrassing problem. What I usually do is walk up to every person in the vicinity, usually strangers, and simply say something like, "hey, I actually didn't pee in my pants, I just spilled my soda - have a nice day!" This is a great way of making things less awkward and people are usually like, "oh, whew, for a second there I thought you really wet yourself!"