Felt like I was really in the flow of working. Found the right donor figure and went to boil some water in the microwave to disassemble it.
Walked back over after a few minutes (my shop microwave usually takes a little while to get the water up to temperature) and saw the cup sitting on the counter and figured I just forget to put the mug in. Opened the door and was greeted by a cloud of toxic smoke and a decent approximation of The Thing (Carpenter not Lee/Kirby) where the figure used to be.
I think this is my biggest goof since I accidentally glued my foot to the carpet in a rush to finish a figure for the first Liberty group project.