How to order tacos without being a bitch.

I went into Chipotle tonight to get a couple burritos for the wife and I. In front of me was this yuppie in her "scrub clothes" (read t-shirt and designer jeans with no makeup) holding a four year old. She goes up to order and asks for a Burrito Bol, three tacos and a taco on the side. The guy looks at her, obviously confused, and goes "What was that?" "I want three tacos and one on the side" "On the side of what?" "It's for him," and she nods at the kid. So he replies "Oh so you want an order of three tacos and an another taco by itself?" She goes completely cold. I was standing two feet *behind* her and I felt a blast of ice. "Yes, that's what I said when I said I wanted one on the side." The guy gets a little uncomfortable and tries to make a joke... he kind of giggles and goes "I just wasn't sure what you wanted it on the side of." She just stared him down. He finishes making what she wanted with her being a total douche to him. She gets passed off to the next person responsible for salsa and toppings, and I walk up to the counter. I started ordering and I could tell that the guy was uncomfortable so I lean in and go "Yeah, dude, I think you ruined her whole day with that on the side business." He chuckled and immediately relaxed. So I get near the end, passed off to the condiment lady, tell her what I want and I hear "The Bitch" complaining to the cashier. She was trying to do it quietly but I heard her say how rude the guy was and that she was never coming back because of his attitude, yada yada yada. I saw the guy keep looking over and he looked like he was getting nervous again. The cashier asked if she wanted to talk to the manager but the douchecunt just waved her off and stormed out. I walked up to the cashier, handed my credit card and said (rather loudly) "For the record he wasn't rude in any way, shape, or form, she was just being a bitch." I'm pretty sure she heard me and I saw the guy grin.

Normally I am the one pissed at the less than intelligent fast food workers, but that guy was honestly confused because she made no fucking sense. I would have reacted exactly the same as he did. Who orders three tacos with one taco on the side? On the side of what? Why not just order four tacos? Or say "I need an order of three tacos and then one extra one"? That makes a shit ton more sense than one on the side.

I wonder if she asks for sex with cock on the side.