Easily encouraged by Tidus's words, Inigo starts pinching even harder. He's doing it! He's saving his father here with his own two hands, making a very important contribution--

-- to Roland's increasing teenager-induced pain, apparently. Because the moment Roland sits up and tells him to stop, Inigo jerks his hand back like he's been burned by fire. "S-Sorry, father, I.. I didn't mean--"

Before he can even finish that apology, complete with guilty puppy look, the rest of Roland's words finally dawn on Inigo.