I learned it by watching you!

Like Father, Like Son, also known as I learned it by watching you!, was a large-scale United States anti-narcotics campaign by Partnership for a Drug-Free America. Launched in July 1987, the campaign used a televised public service announcement.

The PSA features a father confronting his son (Reid MacLean) in his bedroom after finding a box containing an unspecified controlled substance and drug paraphernalia. After his father angrily asks him how he learned to use drugs, the son shouts, "You, alright?! I learned it by watching you!" As the father recoils from realizing the error of his own ways, a narrator then intones, "Parents who use drugs, have children who use drugs."

It was listed by Time as one of the top ten PSAs of all time.[1]