"In 10th grade chemistry, our teacher Mr. Lavender had us watch a video on electricity and magnetism or some such.
In one demonstration on the video the guy was showing the varied effects of static electricity. He produced a large glass rod, and there were 2 foil-wrapped balls hanging from a little apparatus. He proceeded to literally jerk off the rod with a wool cloth, extremely vigorously and for quite a bit of time. Then he stuck the rod in between the two hanging balls, and they started swinging back and forth, being repulsed by the glass rod.
Everybody lost it, we couldn't control ourselves. Meanwhile, Mr. Lavender, being a Christian man, was not amused.
Then again, the same teacher also gave me an F on a video presentation about Gallium. I mentioned that it was used in solder, and my friend was like "Yo we can use this to hot wire six fo's (A Cadillac) in the parking lot!". He failed me for "Endorsing carjacking" in my video :|"

-Horger on Reddit