I've just gone to make a cup of tea and realised that it means opening a new 4 pinter of milk.
I was unreasonably pissed off at this.
The cap hurts my hand and I hate pulling of the stupid, silver seal then having to throw it away. 
I have no idea why this upsets me so much but it made me realise that I although I will do it. I am stupidly annoyed every time I have to and if that if I can find a way to get dh to do it, without actually telling him about my unreasonable dislike of the task, I will.
It made me wonder... is anyone else pissed off by anything as ridiculously small and insignificant, or am I alone in my unreasonableness?