People who refuse to accept defeat

Okay so this post is about my boss at work. She refused to accept the fact that I was right and she was wrong. In this case its because I was sent back into the cooler at work to fetch boxes of chickens for the hot foods area to cook up. We were supposed to get a bunch of big chickens and few small. The company sent us all small though, im assuming they didn't have enough large to meet demand, and I told her this. At which point she stated that they should be back there. I am well aware of what should be there, I am also aware of what is actually there. I pointed out that they did in fact send the correct amount but not the right type. She then said that there was no record of them substituting small for larges and that I must be mistaken. Two minutes later she reports to me that they are all there. I'd like to point out that I was never disputing the amount of shit back there, just the fact that it was the wrong shit. Now I had just spent almost 20 minutes tearing that cooler apart looking for the right chickens, since hot foods desperately needed them, only to have someone come out later and basically tell me that not only can I not read but I am also retarded. Thats bullshit. I do this same shit every damn day. I think I know what I'm doing at this point. I'd also like to point out that at this point in time a sheet saying what was delivered, even printed from some computer somewhere, is dependent on some jackass typing in the right info. It is entirely possible that joe blow just put in the wrong info. Technically I don't even have to do this as part of my job. Hot foods has people capable of this task. So in the event that I do this and report something you don't want to hear, don't fucking tell me I'm retarded. Once again, that's bullshit. Also, just so you know. I checked in the main cooler today at work, and low and behold, no large chickens to be found! Go fucking figure.