I'm in a gigantic creative slump at the moment, so in the absence of anything worthwhile to submit, here's a photo I found while digging through some old files.

Near the end of my second year of university, while "revising" (in the loosest possible terms) for the exams, we somehow turned to filling up the department whiteboards with this sort of junk. This photo was taken after it had miraculously survived the summer courses - you can see in the bottom right where someone had started rubbing it out and then decided to leave it, cramming their logic formulae into a handy gap instead.

Most of the drawings are by me, though the dreadful puns were contributed to by just everybody (you can sort of see something that resembles my signature icon in the bottom right). As you can see, there's a good reason why this is only my second drawn submission!