I've been lucky to never have burned/scorched my wort, I guess. I've had some boilovers that were amazing though. Did you know that 5.5 gallons of boiling wort in a keggle can boilover easily, and continue boilingover the entire time you're away? It surprised me, that's for sure!
Ironically my 1st boilover was in my keggle started doing other things clean up and what not walked back into the garage and well...I started to clean up in there to