diarrhea on people. For reals, if you annoy/agitate/upset/ etc etc I will wish diarrhea on you. Just last week I did it to co-worker and voila, she left early that day and was out the next day because she was sick. I have no idea what her symptoms were, but I like to take credit for it.
I recommend you don’t cross me or you shall feel my wrath. Don’t make me do it.