[taesrom]

Limericks I can't think of any limericks that wouldn't get me permabanned. Let's see: "There once was a young lad from Nantucket..." No, that won't work.

How about something useful from the Rubyat of Omar Kayaam:

The moving finger writes, and having writ, moves on.
Not all your piety nor wit can call it back to erase half a line,
Or all your tears wash out a single word. In other words: Forget about it!