Deny You Are Human with Shreddies

Despite the fact that everyone farts, and everyone knows that everyone farts, some people are horrified by the thought that someone else will know they fart. For these particularly paranoid people, there's a new kind of flatulence filtering underwear embedded with activated charcoal called Shreddies. It's doubtful that they'd make a good Christmas gift, unless it's for someone you really, really want to embarrass. Why are they called Shreddies? That's a mystery for another day.  

(Image credit: Shreddies Ltd.)