In one of their past ads they said "late night munchies" and if you research the word munchies its pretty much getting high on dope. Guess it explains the people in the ad....
Cause stoners eat tacos. This should be self-evident. Taco Bell is open late, and stoners stay up late. They want to sell tacos. Should they not try to sell to a demographic that already is in the market for tacos? What a trolli question.
I usually smoke pot, then go to tacobell and eat. Then I spend the next hour doing whatever the hot-sauce packages tell me to do. Most of the time they want thier back scratched.