To celebrate April Fool's Day we've rounded up some pranks that only Friends fans can truly understand. If you don't get them, get out.
1. Place a severed thumb in their soda
Any thumb will do.
2. Make Gladys visit them in the middle of the night
Bonus points if you bring Glynnis too.
3. Call your baby girl Chandler
Bit of a long-haul prank, this, but definitely worth it.
4. Post on Facebook that your friend has died, and then invite everyone to your flat to commemorate them
Even better when only one mourner turns up.
5. Be the aforementioned dead friend, and come back to life when the aforementioned one mourner shows up
Just kidding, only Ross would do something as sick as that.
6. Jump out from behind curtains to help your victim master Unagi
Ahh, salmon skin roll.
7. Change your name to Crap Bag
That'll really piss off your mate, Princess Consuela Banana Hammock.
8. Throw a dummy dressed like you down the stairs
It's great because it's traumatising.
9. Take a quarter, blacken the edge, and ask your pal to roll it down their face
In the words of Ben: "Can I do it to you?"
10. Steal a stuffed penguin from a child
Because you deserve a bedtime penguin pal.