Some people are just fucking nuts. Working in restaurants when I was a teen I learned real quick to fucking hate people. Somebody always wants something special. There is always one asshole out of the bunch that does not like the onions or cilantro or whatever the fuck. Its one thing to order special shit at a sit down place, where your food is made to order, but when you have troughs off the shit pre-made for lunch rush and some asshole wants no onion, youre like WTF?
Also whats wrong with sour cream, guacamole, or tortilla wrap? Jesus Christ. MODERATION, people....