Yes, this was an actual puzzle in Amnesia: The Dark Descent, and this was pretty much my reaction the whole time.
It needed to be done in order to get the corpse's blood in your character because it contained an antidote to some poisonous mushrooms.
Don't forget to check out the comic at Tapastic! http://tapastic.com/episode/57444
Link
LenGrey
wtf! XD