Well it's been a while so I thought I would bring this up to date we had a health and safety day course ad I brought up the bum slides, we have a t card system to raise things that can cause hazards to health as they don't want to do nothing to adversely affect our life styles., they don't want our home life to be curtailed by work place problems. Well I put in three t cards on the bum slides, no result on the first one, he second one was old it was our fault because (and no there has never been any training on them) we are not using them properly. The hired one did get a change they put in two more bum slides asking it completely impossible to avoid them. I now can't sit for more than about half an hour without pain in my tail bone so it is having the effect that going to the cinema, or the theatre which I have always enjoyed is being curtailed by the amount of pain that comes with it. Also others are now complaining of back problems and are making it official, one thing the head engineer said,he also doesn't agree with the bum slides is that he has back problems that are made worse by them and he noticed that they are too tall and most of the women have to reach up to get on them the twist on your tail bone to get your legs over the belt the slides go over.