I remember in the 7th grade our school took classes 3rd-8th on a field trip to the aquarium. At the electric eel tank, the guide brought out a trainer that gave us a run down on what they were and how they generated their charges and so forth. The grand finale was he was going to get shocked by the eel and measure the voltage. In the tank was a little glass looking box where he was going to put his hand and let the small eel shock him on a part of his forearm. There were sensors in the little glass housing that would measure the voltage. The dude put his hand down in there and the little eel was coming over, he was talking and he turned to look at us and was saying "here it comes... watch the meter..." when a much bigger eel darted by the small one and whalloped the shit out of him. Literally. He gasped, fell off his little step stool, and kept gasping/sucking in air while laying completely still on the floor. Then pissed and shit himself. The other staff surrounded him while EMTs were called. They ushered us out of the room but not before some kid in the 3rd grade shouted "EWWWWW He dookied him pants". As if everyone couldn't tell that already from the waft of a freshly served turd pie that was already in the air.