Professor Brandes' educational simulation was goofier than Piotr would have liked, but he had to admit, he'd never confuse a bacteriophage with a phagocyte again. The former would always remind him of four-month-old pizza.
Bacteria pretty much have nano-sized versions of anything humans can come up with. That list somehow includes knife-wielding street gangs, as some bacteria shoot poison-tipped molecular "daggers" at each other, proving that nothing does awesome violence quite like bacteria.
I can't lie; I've been waiting for an excuse to post a picture of a bacteriophage*, the microscopic spider virus that lands on bacteria to inject its own DNA, for a long time. This Cyborg Life gives me an excuse.