Hmm, I'm wondering if there was anyone senior around the day you had the accident or if it was a case of the staff present not being properly aware of their companies procedure.

Even if the accident was your fault they still need to have it logged. As I posted earlier organisations need all accident info so they can assess and take evasive action when necessary - for example if lots of staff had accidents with that door then it would become apparent there was a pattern and they could then look at how to avoid.

Tbh what you describe in workplace practice sounds rather like mine - we got the induction video and then we started work few days later and soon found things very different in practice. It's the way of the world (or workplace anyway!)

I wouldn't worry about them firing you, they need reliable workers like you, and they probably aren't bad employers as such just a bit sloppy.