TV series example of the word

The Big Bang Theory Season 4, Episode 23
...and second, Indian parents are very protective of their children.

The Big Bang Theory Season 9, Episode 10
You're very protective of it.

The Big Bang Theory Season 9, Episode 14
Look, I get that you're protective of your grandson,

The Big Bang Theory Season 10, Episode 4
Well, if you are so protective of the scientific method,