MSC Opera had a fender-bender last Friday as it was departing Buenos Aires. It appears to have cut a corner a little close and ran into the fender at the end of a pier, as shown in the YouTube video below taken by a passenger.
MSC said the ship remained at Buenos Aires for inspection, but only superficial damage was found, and the ship continued on the cruise. The delay did cause the ship to miss a call at Punta del Este, Uruguay, however.
Technically, there isn't much to see, but it's always fun to watch big things smash into things. (After all, David Letterman built a career on it.)