Helium walks into a bar. The bartender says, “Sorry, we don’t serve noble gases here.”
Helium doesn’t react.

The bartender tries to take one of Helium’s electrons, but fails.
The Helium is nonplussed.

A superconductor walks into a bar. The bartender says “we don’t serve superconductors here.”
The superconductor leaves without putting up any resistance.

To get to the other side.
Why did the tachyon cross the road?

Schrödinger’s cat walks into the lab and says, “This experiment scares me half to death.”

An infinite number of mathematicians walk into a bar. The first orders one beer. The second orders half of a beer. The third orders a quarter of a beer. The fourth orders an eighth of a beer.
The bartender says, “Screw you!” and pours two beers.

A termite walks into a bar, looks around, and asks, “Is the bartender here?”