I get really mad when they mess up my order. I have a milk allergy, I order my burger without cheese, it says without cheese on the box they hand it to me in, and then it has cheese melted all over it. I don't care how old the idiot that made it is or how cheap the food is, I don't want to have to choose between throwing away the burger I paid $6 for or crapping myself to death later that night. Happens all the fucking time too. Now I just hold up the drive-thru line while I dig around in the bag to pull the burger out and check that it has no cheese. Fool me once, shame on me. Fool me again, you can't get fooled again. Wouldn't care if they gave me the wrong thing - you're right there, its all pretty much the same. I just don't want any fucking cheese.