Sorry to hear about that grand, but it does remind me of a funny story that happened to my mate when we were labouring......... we were told to clear out a room for a screed and there were a few sheet of ply on the floor so me and my mate grabbed a side each i walked backwards and my mate was coming towards me then he disapeared went straight down a manhole he completley disapeared looked down it was about 6ft deep luckily he was fine a little shaken, but funny as f**k ;D