When newlyweds I'd take my Filipina wife to an authentic Chinese restaurant in Portland to enjoy some tasty critters and I'd do my best ma-king foon and it quack hir wup. She said she didn't know we did that in the US ALSO.
Gotta think a pepper ball gun would be fun, for a while, likely to piss someone off though I'd imagine.
The powder inside the projectile is an irritant and can cause people to disperse a little quicker, but the primary source of compliance is from the pain you receive when you get shot with one 115 times.
They hurt.