I'm kinda busy at TIFR, but once, when bored during a lecture, I actually found to inspiration to write some limericks. ;) They're a little physicsy (ok, VERY physicsy), but heck...
Note: The first inspired the second. I think the second is the best, but the others are not bad either...(Ok, the third is very silly and weird... conceded).
There is an operator, nicknamed curl
He was once, desperate for a girl,
He approached a vector,
(But he hadn't checked her)
She rejected, being very irrotational!
Woe all marriages that end in divorce
Like additive inverses (the stuff of lores)
The electron and proton,
Beta and, nucleus forlorn,
The curl and the conservative force!
Hedgehogs won't change to bullets, from pricks,
Analog guys hate changing their electronics,
Romans did change the bust
From Julius to August,
Mathematicians don't prefer British units to 'Metrics'!