A couple from Minneapolis decided to go to Florida for a long weekend to thaw out during one particularly icy winter. Because both had jobs, they had difficulty coordinating their travel schedules. It was decided that the husband would fly to Florida on a Thursday, and his wife would follow him the next day. Upon arriving as planned, the husband checked into the hotel. There he decided to open his laptop and send his wife an e-mail back in Minneapolis.  However, he accidentally left off one letter in her address, and sent the e-mail without realizing his error. In Houston, a widow had just returned from her husband's funeral. He was a minister of many years who had been 'called home to glory' following a   heart attack. The widow checked her e-mail, expecting messages from relatives and friends.
Upon reading the first message, she fainted and fell to the floor. The widow's son rushed into the room, found his mother on the floor, and saw the computer screen which read:

To: My Loving Wife

From: Your Departed Husband

Subject: I've Arrived!

I've just arrived and have been checked in. I see that everything has been prepared for your arrival tomorrow. Looking forward to seeing you
then! Hope your journey is as uneventful as mine was.  
p.s. Sure is hot down here!

About five years ago, someone whom I'd had a technical discussion with from USENET emailed me a long gay porn tale about a B&D buttfvcking session he'd had, asking me if it was ok if he posted it to USENET.  I couldn't figure out (1) why he was emailing it to me, nor (2) why he was asking me for permission -- other than that his sex partner had a similar name.

I told him it was ok, but why was he bugg(er)ing me about it?

He was rather embarassed -- he'd sent it to the wrong email address.  He grepped through his mail file for the guy's last name, which happened to be the same as mine, and ^C'ed it after it found the first instance -- which was me. [:D]