Ok, a little background. There are 4 of us in the household, DP, DD (16), DS (2) and myself. Generally I do all the shopping, unless someone is picking up something quickly. I don't object to this in the slightest. DP works 45 hours a week and him and DD are rather hopeless when it comes to a food shop. So on a Monday I check the fridge and do the shop to last a week. No problems
Today I'm working a late shift so as I had some time spare I thought I'd make macaroni cheese so he can just wack it in the oven when he gets home. Check the fridge, loads of milk, we drink soya for his intolerance (he won't have the mac and cheese). Go to use the front bottle, only a little, ok no problem, I'll open a new one. Next one is open, only a little, getting a bit grrrrr. I kid you not, every single carton was open, and the other 3 had curdled!!!!!! Luckily I had some milk in the cupboard, but really? I don't drink milk, I don't drink tea or coffee, and I hate cereal. Neither does DS. So it has been DP and DD.
So would I be unreasonable to line the cartons up and leave a note along the lines of "there is no milk, these were all open. I'm not getting milk anymore!!!!"