Yeah...  Even if there was a glitch like that at my bank, I would never withdraw that much money (especially since I don't have it), because I would worry about the EXTREMELY HIGH overdraft charges that would come afterwards.

But since it's a glitch, there won't be any overdraft charges for this guy, but when you withdraw an amount of money you don't have from your account, that would be your first concern.  Why didn't that thought cross his mind?  It's not like he knew there was a glitch, and took advantage of it.