@RJSakowski :
There are
two points of emotional trauma.
The first is at the first ding, more or less as you describe, although I would distinguish between a bit of a scratch, and a more catastrophic "ding".
The other is the time when you drill your first hole, or make your first cut (into the machine body), for whatever mod you are doing. It happened to me when I started with the hacksaw cutting away the business end of my compound's ACME nut!