The power is pulled off the main switch in the bathroom which ran an overhead light (now a medicine cabinet/light), which isn't GFCI. Only the outlet in the bathroom is GFCI. I can't tap into the GFCI outlet in the bathroom, because I'd have to tear open way too many walls and there isn't room in the attic to get to the feed wire.
But, I can tap into one of the lines feeding the kitchen, which is on the GFCI loop. I figure I'd just snip the wires, put in a junction box, and splice the wires back together + 1 new 14/3 romex cable which I run over to the vent fan. I assume there isn't an issue if I did this?
In the real world here, how much of a risk am I running with it being of regular power? I'm not going to be doing something stupid like spray the shower head into the fan afterall.
Additionally, it looks like my guest bathroom fan isn't vented to the room. It must have been a retrofit and they just cut the hole and put the fan up there and it's blowing into the attic. It's been like that at least 6 years, maybe longer. How bad is it if I leave it like that? The attic has all blown-in insulation and the fan outlet is pretty damn close to one of the sofets. If anything, I'm thinking about running some flex tubing and just hanging it over the sofet. Would that be OK? It's $200 to have a vent cut/installed into the roof (and no, I'm not DIY on that).