"Double Trouble" had a scene where Rudy was knocked out, and almost killed. Snap runs up to him and asks desperately if he's okay, almost on the verge of crying.
Snap: RUDY! SAY SOMETHING!
Rudy: * awakens* What do you want me to say? * both smile* .
The ending of the Big Blow Up movie where Penny gives Rudy a big hug when she sees he's okay.
In "Mother Tongue", Penny has been forced to speak in random gibberish by the title character, on the day she has to give an important speech. When she first attempts to say her speech, she runs off the set. The next time we see her, she's crying over her soon-to-be failure. Then, her mother comes along and tells her that wither she succeeds, fails, or withdraws, she will always love her.