Pulling a Hector

1. Being a pointless contrarian

2. Arguing against a good idea simply because it wasn't your idea

"He's pulling a Hector and pretending that Bea Arthur isn't the best name for a dog in the history of names for dogs."

Pull a hector

Pulling a hector is the act of leaving the meeting/classroom when the teacher asks you a question.

Teacher: Billy, where does the apostrophe go in the word ''they're''?
Student: *pull a hector*