What stupid things have you done?
Two immediately come to mind:
The first one taught me to never put tools, especially screwdrivers, in my back pocket when working on my car. I sat down in the drivers bucket on my '70 Charger 500 and felt a tiny bit of resistance not allowing me to slide all the way back to the backrest. Just one little shove put me all the way back and a hole in my seatcover.
The second taught me that you can't use a socket extension between a cam lobe and the lifter valley web to keep a 340 from turning over while you're trying to break the crankbolt loose prior to doing a cam change. Lean into that breaker bar real good and that 'snap' you hear is the block breaking right through a lifter bore. We didn't do the cam change on that block - we did it on a brand new high-nickel 340TA block I bought from Keith Black's shop.
The good thing is I learned from both of these as they happened over 30 years ago. I've never repeated either one.
Once is dumb, twice is stupid.
