The Dude ended a frame with a 3-7-10 split, much to his chagrin.
"Dude!" said Walter. "Where'd you learn how to bowl?"
The Dude huffed. "Thanks a LOT, Walter!"
"No, seriously," Walter said. "I'm honestly curious. Where'd you learn how to bowl?"
"Oh," the Dude said. "I guess I just kinda picked it up, here and there, over the years. Why?"
"You obviously have natural talent," Walter noted, "but you put too much spin on the ball, you don't throw the ball hard enough, and your posture is poor. Basically, your technique sucks."
The Dude sighed. "Thanks a LOT, Walter."