It wasn't so much the fact that they were told to scoop it off the floor and reuse it (things like that must happen in restaurants all the time!), it was more the fact that at least one of the glasses had smashed, and there was probably some tiny shards of glass still on the floor there!
But come on, how thick do you have to be to manage to break three lots of glasses, I mean after the first one, you'd move them somewhere safe, after the second, you'd think okay, that wasn't safe, just take them outta the fridge!