I used to work as a groom then a BM. First at a breeding facility, than at an A barn. Lots of experience handling babies, stallions, rehab and quarantine horses.
I would trust my trainer and his partner more than myself with an especially naughty horse. They’re stronger than I am, have good horse sense, and don’t let their emotions get in the way. Plus horses are their full time job. Horses haven’t been my career for almost 10 years now.
Most of the regular staff though? No I wouldn’t trust them, not enough experience with excitable horses. One of the staff I don’t want handling my horses at all really, her first reaction to everything is to “shank shank shank and back up”. Way to rough for no reason. Luckily one of mine lives out 24/7 and only gets handled by me, the other is polite and only needs to be led about 30’ from her stall to the gate.