I thin kI'd take out the typo and would have definitely sent the first. My old boss was just as childish as I can be sometimes, and used to take great delight in ringing me, only to say "Sorry I'm too busy to chat", and then hang up again.
I once sent a horrific e-mail to the wrong place. We had been asked to come up with a few sentences about ourselves for a staff intranet sort of thing, so everyone's writing down how they have 2 dogs and like skiing etc. One of my mates said that she didn't want to do it, so I offered to write hers instead, and naturally made it just about the crudest thing I could think. Under hobbies I announced that she like to go out in short skirts and no knickers to flash people on public transport, and a variety of other things. Sufficiently proud of my work, I intended to send it to her, but instead forwarded it to the director of another part if the company. I was SO lucky that he sent one back saying "I think you should be careful what you do with your e-mail in future", rather than discipline me.