In the process of fitting the chassis harness to the car, I've run into issues with of the crimped spade terminal slipping off the wires while handling them. The issue is entirely with the style of insulated crimp terminal that whomever built the harness used. In my experience this style of terminal is just unreliable: it's impossible to know if you've gotten a good, positive crimp on the conductor and sleeve. I've had more of these slip off of wires than I care to try to remember, including the two from last night.