Joke, sort of, for the day

Rico says his father sends along this one:

A pirate walked into a bar and the bartender says: "Hey, I haven't seen you in awhile. What happened? You look terrible."
"What do you mean?" asked the pirate, "I feel fine."
"What about the wooden leg? You didn't have that before."
"Well," said the pirate, "We were in a battle, and I got hit with a cannon ball, but I'm fine now."
The bartender replied: "Well, okay, but what about that hook? What happened to your hand?"
The pirate explained: "We were in another battle. I boarded a ship and got into a sword fight. My hand was cut off. I got fitted with a hook, but I'm fine, really."
"What about that eye patch?"
"Oh, that," said the pirate. "One day we were at sea, and a flock of seagulls flew over. I looked up, and one of them shit in my eye."
"You're kidding," said the bartender. "You couldn't lose an eye just from bird shit."
"It was my first day with the hook."

Rico says that his father's comment was: "You could compose an answer for Why the eye patch? based on this", but that's not funny...