I’m getting annoyed

Guys so I don’t mean to btch or complain but I’ve complained to supervisor and head manager of the building about erregs coming down the belt as to which he responded saying I need to man up and I said your asking for an injury and he just stayed quiet. We had 2 5 gallon buckets full of paint come rolling down the chute. Luckily they didn’t break. On top of that we get refrigerators ac units…. Causing jams and they btch when it jams. I’m not one to file grievances because I’ve been told by other employees that it’s not good getting on managements bad side as they can decide if you drive or not by putting a word with HR. I do get along with all management but it’s just annoying having heavy ass things come down fast that can cause a serious injury that’s preventable. I was told seniority doesn’t exit here as a driver has been here for 4 months and I have for 1 year and we both signed the bid list