I have been in a few scenes where there have been equipment failures. It was a bit of a buzzkill because I get to subspace very deeply and very quickly, so coming out from that while the Domme went to plan B was a little unsettling for me. In just about every case the Domme simply made an adjustment and got things back on track pretty quickly. There was one session when a piece of suspension equipment failed, and it rattled me so much that I stopped the session because I just didn't feel safe. Other than that one occasion, things worked out ok and like you, a few of the Dommes were more upset about equipment problems that I was. I guess that's the sign of a true professional.