Scrubs Season 3 Episode 3

Elliot: And... the reason that I came back here is because you said that Bruce and I are alike. And you know what? You're right. Because you're treating him the exact same way you treated me when I first got here! Dr. Kelso, you only judge us by these, like, twenty-minute, pressure-filled windows that you see us through twice a week, and you-you never get to know us or how hard we really work. Because, if you did, you'd realize that a lot of the times we fail, it's not our fault - it's yours.
Dr. Kelso: Is that how you feel, future dentist?
Bruce: W-well... sometimes you make me feel like... I can't do anything well, and I can do lots of things well!
Dr. Kelso: Like what?
Bruce: I'm a pretty solid human beat-box.
Elliot: Bru-Bruce, I think he was talking about medical... things.