While using fingers to hold piece of sheeting in place, CA wicked over and glued fingers to fuse.

While firmly holding a straightedge on a piece of balsa to shave off a small amount, managed to also shave a finger that was overhanging the straightedge (to make sure it didn't slip!).

While using kicker to 'encourage' some CA to cure, didn't realize that the CA bottle was also in the path of some overspray. Did you ever glue shut the glue bottle?

While scratch-building a model, I once cut the landing gear notches into the tops of the ribs. Didn't find this out until I'd glued all the ribs to the LE, TE, and both spars!

I once had the knife with the #11 blade fall off the shelf and 'spear' my thigh. That was sore for a week! Also put a small hole in my pants.