Monday's episode of The Big Bang Theory wasn't great (hopefully Season 10 recovers quickly from its lackluster start), but it did have three classic indignant Sheldon (Jim Parsons) moments.

Leonard (Johnny Galecki) and Howard (Simon Helberg) are visited by an intimidating Air Force scientist named Col. Williams (Dean Norris, in full Hank Schrader mode) who wants to acquire their quantum gyroscope for military purposes. Sheldon is at the meeting, because no way is he going to miss this, but he's forbidden from speaking, because he's annoying. So he has to respond nonverbally, and Williams' perceived idiocy gives him plenty to react to. Sheldon's silent overreactions were the best part of the episode.

"I'm an engineer."

"Behind every great invention is an MIT mind."

"It's not like you're handing us the Death Star from Star Trek."

Jim Parsons is a talented physical comedian, even though he's too tall. Right? Doesn't Sheldon seem like he shouldn't be so tall, especially compared to Leonard? Have they talked about this?

The Big Bang Theory airs Thursdays at 8/7c on CBS.

(Full disclosure: is owned by CBS.)