Redbear,
As a small contractor I have forgotten to put a panel cover on and appreciated folks like you that took the time to put it on but also let us know about it. Sometimes we need to be reminded to make sure everything is closed up before we leave. Usually happens after a day of intense searching for wiring unmarked by others leading to mental exhaustion. Only an unprofessional electrician would resent you bringing this situation to their attention. Most would thank you and consider you a friend for letting them know. This idea of never touching anything for fear of liability is getting out of hand in this country and soon we'll be afraid to even talk to each other because of "liability", although I have met folks that weren't "qualified" to talk. lol
Norstarr
