you don't want to see this:

I was replacing the thermostat housing, water temperature sensor and the thermostat cover. One of the bolts broke off in the head. That's always fun. Luckily about 3/8" of an inch was protruding. With a little penetrating oil (50:50 ATF:Acetone - works every time) and vice grips, I was able to extract it without drama.

Dodged the bullet...this time.

B.T.D.T. Glad you were able to get it out.

Made my knees get weak looking at that photo.