I call 'em April babies 'cause they fools

In light of today's holiday, I would like to pay homage to the art of practical jokes and pranks as seen on The Office.

A few of my favorites in no particular order and their respective episodes:

1. Knock Knock Jokes ("Golden Ticket", Ep. 5.17)
   
   
   
2. When Jim giftwraps Dwight's desk ("Moroccan Christmas", Ep. 5.10)
   
   
   
3. When Dwight discovers the sex predator's identity ("Women's Appreciation, Ep. 3.21)
   
   
   
4. When Jim moves Dwight's desk into the men's room ("The Fight", Ep. 2.6)
   
   
5. When Jim puts Dwight's belongings in the vending machine ("Booze Cruise", Ep. 2.11).
   
   
6. When Jim conditions Dwight using Pavlovian theory ("Phyllis' Wedding", Ep. 3.15). An evidence-based application of psychology, simply brilliant.
   
   
   
   
7. When Jim encases Dwight's stapler in Jell-O ("Pilot", Ep. 1.1). Classic in its simplicity.
   
   
8. When Jim encases Andy's calculator in Jell-O ("Gay Witch Hunt", Ep. 3.1). Loses its originality second time around, but you can't put a price tag on Andy's reaction.
   
   
9. When Jim hides Andy's phone in the ceiling ("The Return", Ep. 3.13). Again, Andy's reaction never fails to entertain.
   Rockin' Robin
   
   
10. When Jim impersonates Dwight ("Product Recall", Ep. 3.20). Equally funny is Dwight's impersonation of Jim: