Another one climbing in Chamonix route called the west face of the dru in 71. Got to the top having a brew and food when 2 Italians came to the top of the north face. They didnt want to stop, and asked if they could abseil of first. We agreed they were both roped together, the first one abseiled and the piton came out and both of them went together 2000 ft on to the Mer DE Glass below. We shit ourselves we were very carefull going down. To think we would have done the exact same thing, I was always carefull on decent after that