Having worked fast food while in high school, I can sympathize with these losers. When you spoke to the kid, here's what she heard:
"I'll have a (blah, blah, blah, blah) and a small (blah, blah, blah)".
And, while you were standing at the counter, she was thinking about: sex, makeup, boys, painting toenails, (tacos), calling her friend, calling her boyfriend, emailing her friend, emailing her boyfriend, (tacos?), sex, shaving armpits, Britney Spears, that little drop of spit at the corner of your mouth, (tacos), sex, cigarettes, math test, boy my feet hurt, boys in general, buying a new purse, (ice in Pepsi?), whateverrrrrr, when do I get off work, boys.
All this in 2 minutes. Just remember, they don't hire brain surgeons to work at Taco Hell.
Extra hot taco sauce, please.
I can also understand your side, I once threw a bag full of bean burritos at the assistant manager of a local Taco Bell after they had screwed up my order for the 3rd time and I had driven back for the 3rd time.