lucy24 - 3:01 am on Oct 26, 2011 (gmt 0)
Talk about the stupid mistakes you can't believe anyone would make but you see them again and again. That should take up the whole session by itself ;)
Careful! As the asker, I'm free to use the word "stupid" but possibly it would be better not to tell people they're being stupid if they haven't already used the word. Same goes for any situation where your gut response is "Are you insane?!"