Re: hot plug
I remember my previous BMW Hybrid used to plug in and charge quite happily in the garage and without any bother due to the cooler temperature in there until one day it didn't.
I regularly did a quick 'hand on the plug top' when charging it and it was always at a Goldilocks temperature. Then one day I didn't check it and maybe it wasn't happy with me for paying it no attention but with a very loud crack and spark, it blew the faceplate of the socket across the other side of the garage.
I'm putting it down to old plastics but I never plugged it in overnight or if I was going out again, just in case.