i've shit myself when i was in kindergarten or so....i had to walk from the bus stop to my house and i just couldnt make it....blam! all the way down to my ankles.
I had a close call when i was in grade 3 or so....realized i wouldnt make it to my house so in the middle of winter with 2 feet of snow on the ground i took a shit in my back yard....lemme tell ya that creates a lot of steam