Once More, With Eeling
I can understand the researcher doing the eeldance once, but multiple times? Come on man, that's why you have graduate students!
Also, the circuit diagram shows the improper practice of touching the eel with the inside, or thumb-facing side of one's arm. Proper safety protocol demands the use of the outside, or pinky-facing, side of one's arm so that the involuntary contraction of one's muscles, should such an incident occur, will automatically move the arm in a direction that breaks the circuit.