I agree, good point (PS, I have scars)

Well done! No circumcision is complete until the deburring is done.

Good point. Sparks actually do damage...

Thanks!

wrap a wet cloth near the cut to wick heat away, on both sides of the cut. A thin abrasive disc in an angle-grinder is exactly the tool. Stop often to let it cool.

I dont know whats in tap magic, but I worked for a while in a shop that always had a can next to the drill press.

The holes got drilled faster, and the drill bits lasted longer. Don't ask me how.

"The word Windex come from the Greek winopolous and dexopilae, meaning wipe and clean...you are too skinny, you need to eat more!"

Its learning from other peoples mistakes, and understanding when to be careful enough, and when you can get away with hot-dogging it.

You get good judgment from experience, and you get experience from bad judgment.