Place a pair of pants and shoes inside the only toilet stall in a rest room to make it appear someone is using it all day.
 695
1  

Change the coffee in the office coffee maker to decaf.
 1353
1  

Remove the shower head and place a chicken bouillon cube in it, then put the head back on.
 654
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.
 1897
0  

Put tape over the optical sensor of someone's mouse.
 796
1