Mooring your sib.
All depends where you're going to leave it. Use common sense, remove all loose/valuable stuff, put a cover over the console, double line to the mooring bouy, remove keys, isolate batteries etc. Cross your fingers, make sure your insurance covers you on a mooring.
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4:Don't feed the troll