[Verginius Rufus]

If there were only two hydrogen atoms, they would eventually collide?

Makes me think of the Far Side cartoon where there is a large plain with just one tree, and one dinosaur. The dinosaur manages to walk into the tree.

[Red Badger]

Two hydrogen atoms walk into a bar.
One says, “I just lost an electron!”
The second one says, “Are you sure?”
The first one replies, “I’m positive!”..................