The day I had loose bindings going down a black run wasn't fun though A lump of ice caused one ski to come off just before a tight bend and regrettably that prevented me from turning, so I just went straight off a cliff and into the safety netting. It caused a massive cut to my cheek, and the tip of my remaining ski (not sure how this happened) came up and cut me across my neck near the jugular. Aside from that it was pretty comical to watch, I imagine
Anyway I am buying some better boots this year. The problem with hire kit (which is what I found) is its not really custom to you as a person.
To be honest, the scariest bit was when we all piled down the slide at the pool on the last day - when I got on the slide the cheek scab was there, when we got off it was stuck on my mates back like a baby tribble...!
Snow & Rock are a pretty safe bet because they will look at your feet and know which boots will suit your feet (and then do the custom fitting as well), they price match and usually have a decent range.