I remember when my C&D cherry got popped.
I owned a slew of domain typos for eharmony.com, they got mad. I deleted the domains and let them know. When they found out they had to wait for the domains to officially drop (70 days or something?) before they could reg them, I lol'd and they went away.
I also made bank with hostgator typo domains, but I deleted those willingly for fear of another C&D.
And the funniest thing is when I registered 20-some godaddy typos, right on godaddy. I put them in a folder called "Godaddy typos" hahaha...good times.
I've since moved on from the typo squatting days though.