When you repost it.
The US couldn't stop Stalin.
When around both, one eventually stops moving. Forgive me.
People laugh at my face.
It can be a very Hubble-ing experience. These jokes may not be funny for you, but they are Fermi.
Three. One to post it, the second to post a better punchline in the comments, and the third to complain that it's a repost.
Most people reddit before