Fill someone's hair-dryer with baby powder.

 734

1  

Change the coffee in the office coffee maker to decaf.

 1396

1  

Find a sleeping person, fill their hand with shaving cream and then tickle their nose.

 771

0  

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

 827

1  

April doesn't fool Chuck Norris, Chuck Norris fools April.

 817

0