Hey all, OP here To everyone wondering: yes, it was disgusting. After freaking out for a little, I just tried my best not to puke and washed the cockroach guts off my back. I smashed the half-dead cockroach with a shampoo bottle just to put the poor thing out of its misery and threw out the loofah. Speaking of the loofah, it was one of those really hard thick sponges, which is probably why the cockroach's shell got crushed by it (I also thought cockroaches' shells were too tough to be crushed like that, but maybe the steam from the shower softened it?) Anyway, though it was really really gross, the one good thing that came out of this is that my FML actually got posted, which is pretty cool. Thanks guys :)