Star Wars C-3PO & R2-D2 Smoking PSA 1983
https://www.youtube.com/watch?v=xPMu8QP8M9M - from the Neil Bowyer YouTube channel (1 min long)
The blurb:
“A Star Wars–themed public service announcement produced by the United States Department of Health and Human Services aired in 1983 and starred the droids C-3PO and R2-D2, who warned children about the dangers of smoking. The television spot consisted of a skit in which C-3PO finds R2-D2 smoking a cigarette, prompting C-3PO to explain the negative physical effects of smoking and how the two of them should set a good example for Humans.”
To me the funniest part of this video is that this interaction doesn’t really seem that out of character for Artoo and Threepio.