More limericks
I realise that we've had a limericks thread before, but I can't find it to add some of my own. I hope no-one minds if I start a new thread. Please feel free to add your own limericks.
Here's one to start us off.
There once was an old man from Esser,
Whose knowledge grew lesser and lesser.
It at last grew so small,
He knew nothing at all,
And now he's a college professor!