The touristy shops in San Francisco's Chinatown are teeming with gadgets, but it's usually overpriced cameras and items of questionable authenticity. But in one of my favorite fun crap stores, I found a variety of gadgets that will shock you — literally.

I knew the geek prank of late was shocking gadgets, but I had only seen the games, as evidenced by the Sugar office showdown! I didn't know there was a whole world of punkings to be had with hand-shocking gadgets, but in Chinatown, I found them.

Boss bugging you? Give him a USB stick with your latest "project" on it and watch his palm buzz. IT guy making fun of you again? Put this mouse on your pad and shut him up right away. Annoying little brother that keeps asking for an iPod? Give him this one!