Worst Game Experience?

[E-Man]

Link started constantly running to the left, even when I didn't push anything, and the c-buttons stopped working.

A similar thing sometimes happens when I start my games in the n64 days and Gamecube days. I don't know how this happens, but sometimes, the character moves by itself, even though I didn't touch the control stick. Sometimes, I had to remove and reinsert the controller to get it back in working order, but other times, I need to turn the game off completely and try again.