[Adrian Cotney]

My idea which might of already been thought of, is to act like a fake dummy whatever you want to dress as, but instead of the traditional sit in a chair, act like a dummy that has fallen over, you can add a fake stand or something, then if someone tries to pick you up you can scare the hell out of them.

 

[matrixmom]

Hahaha.....thats a good one. Everyone suspects the dummy sitting a chair. Hopefully your actor doesn't have arthritis if he is all crumpled up on the ground all evening....

 

[Ugly Joe]

Wear some good pads/protection - I've been punched and kicked before posing as a scarecrow and startling people, and that was standing up...if you're at the foot level, kicking will be the first weapon, and your face may be a prime target.

Remember: it's a FIGHT or flight reaction...and you never quite know what people bring to the table.
(sometimes, even they're surprised by their own reaction)