Giraffe shit and piss is bad, especially from the virile males. I had to clean up after the breeding male at Perth Zoo (he now lives over east, impregnanting new females). Massive puddles of giraffe pee in the night quarters and bits of poo ground into the concrete by a 3 tonne beast. Much fun.

Oh, and NEVER stick your head near the bin used to dispose of carnivore poo, and especially don't breathe. I made that mistake once, never again.