At work, my dad noticed that the name of an employee was the same as an old friend. He found the man's e-mail addy and sent him a message.
When Dad received a reply, he was insulted and fired back another e-mail: "I have put on some weight, but I didn't realize it was that noticeable."
His friend's hastily typed message, with an apparent typo, had read:
"Hi, Ron. I didn't know you worked here, but I did see a gut that looked like you in the cafeteria.