I had a batch clog my kettle drain valve a few brews back. A combo of pellet hops and whole leaf left enough gunk in the bottom of my kettle to clog my 1/2" drain... I worked on trying to clear the drain for almost an hour with sanitized tools, wires, etc. but could not free the blockage. Finally I decided to get in there with a pair of slip-joint pliers to try to unscrew the elbow inside the kettle. With the help of friends I was able to tip the kettle enough to get access to the elbow, but I dropped the pliers into the hot (160ish degrees) wort. !doh!
These were pliers I used to work on cars, home plumbing, exterior landscaping, etc. so they were very dirty...
Batch turned out fine, in fact it was one of my best because of the long flame-out rest steeping those hops.
Moral of the story is, boil, cool and ferment. It's beer, it'll be good.