The pirate says "ARRGGHH! It's drivin' me nuts."
Arrrr-thritis
They think, therefore they ARRRRRRRR!
Put a steering wheel in front of them
The steering wheel...
ARRGGHH" (R) Your response = (in a pirate voice of course) "You'd think it'd be the ARRGGHH but it actually be the SEA!!! (C)
The pirate responds: "Arr, its been drivin' me nuts."