Everyone knows pirates have more fun anyway. I've never seen ninjas hauling around wenches and mead. 
Pirates do have more fun I agree and am three million percent on their side. But drink and women isn't pirate exclusive territory
I indulge whenever I can break relationship cover and maintain my alibi. Now you mention it, my band of army mates and I always dance the line of the law and two of them almosts always end up with some sort of violent incident.
I might petition to extent the holiday to include acting like one.
If I remember for next year, I'll try and post a piratey picture.