Sometimes we all just wish we had a big bottle of 'Idiot Repellent' to spray. You could keep one in your work desk and a travel size in your purse for on-the-go use. 

If Idiot Spray has not been invented yet, at least you can have sticker to represent the great idea.

Measures 2.75" x 5.5" (7 x 14 cm). Designed by entrepreneur and TV actress Jac Vanek and made in the USA.