i've heard before people have pee'd their pants. i love clowns but i don't know why but clowns scare people. sounds like you gave a pretty good scare factor. lol. did you ever have someone chew you out for scaring them or have to pick someone up for being so scared and carry them out? by the way, love your avatar.
Talking about coulrophobia, a few years ago I volunteered to help out with a local food cupboard's fund raising haunted house tour and I was cast as one of three stuffed clowns with those freaky Slipknot-esque masks. We layed out dead and unmoving on the chairs and only as people got within a foot of us under strobe light, we'd jump at them. I heard that like 3 people peed their pants.