One of the things that happens to me is I get Tom Lehrer earworms. Especially the ones like SMUT and THE IRISH BALLAD, that I can't sing in front of the kids anyway, and probably shouldn't sing ever.
Also Sam Kinnison routines I heard fifteen years ago and are soooooo offensive to me now, but I loved them then. "I want my records back..." is the mildest of them.
One of the things that happens to me is I get Tom Lehrer earworms. Try this one:
There's antimony, arsenic, aluminum, selenium,
And hydrogen and oxygen and nitrogen and rhenium
And nickel, neodymium, neptunium, germanium,
And iron, americium, ruthenium, uranium,
Europium, zirconium, lutetium, vanadium
And lanthanum and osmium and astatine and radium
And gold, protactinium and indium and gallium
And iodine and thorium and thulium and thallium.