30 Rock episode help

I’m looking for the title of a past episode of 30 Rock where Liz tells Kenneth all her problems/sad information. She feels better, but it makes Kenneth worse. Jack then explains that the negativity is transferred from weak person to weak person. It only stops with strong people, like Jack.

I’m really only looking for the clip of Jack explaining the theory, but I should be able to find that once I know the episode.

Does this ring a bell for anyone? Thanks for your help.

Chain Reaction Of Mental Anguish.

Thank you.

No problem. After all, not everyone’s cut out to be a businessman – for example, curly-haired men, and people who need glasses.

You really crushed that one in your Mind-Vise.

I climbed down into the darkness. And when I came back to camp, I went to the person who cut my line and said, “Connie Chung, you saved my life.”

Blërg!

I can tell that you’re strong in hand-shakefulness