Paint a bar of soap completely with clear nail polish so it won't suds up.
 662
1  

Put tape over the optical sensor of someone's mouse.
 744
1  

I just recently discovered that there is a national holiday named after Atheism. April FOOLS day. Like this story in the name of Jesus.
 1818
0  

Hide all of the desktop icons on someone's computer and replace the monitor's wallpaper with a screen-shot of their desktop.
 766
0  

Take a squirt gun into the rest room stall next to someone and shoot little drops over the wall every couple of seconds while pretending to pee.
 668
0