Almost. I was working on a web-controlled, high-intensity LED grow light (~1800watts of LEDs). I was building a UI element which used a single slider to both c

Almost. I was working on a web-controlled, high-intensity LED grow light (~1800watts of LEDs). I was building a UI element which used a single slider to both control the output of the light and show its current position. First attempt had a bug which caused an infinite loop of the UI setting the light to 100%, then the light setting the UI to 0%, and back and forth. The light was on my desk in an otherwise dark room. I (thankfully) don't suffer from epilepsy, but the the rapid, constant changing from incredibly bright to near darkness made me dizzy to the point where I couldn't really move. Luckily a breaker tripped after a few minutes.