^screenshot creepy doctor, not Mike.

“I got my first period today.”

“So what’s the big deal?”

“It means that blood is flowing out of my uterus!”

“Oh.” Mike looks confused and disgusted.

Later, when swimming plans go awry do to a thunderstorm, Johnny (Mike) asks his girlfriend with all earnestness (10:16), “Do you think your period could be causing the rain?”

Hilarious video. Ah, high school in the 70s. Ah, Mike from Breaking Bad.

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Fun fact:  Aaron Paul, otherwise known as Jesse Pinkman, was cast as that rebellious punk kid in 90s cereal commercials.