OK, this is really petty but my blood is boiling and I feel so mad I have to get this off my chest!!
So I'm studying in the uni library and I'm 36 weeks pregnant i.e. massive bump. I'm really hot and so I had opened the window about 3 inches. Guy comes in, sits down at a nearby computer and shuts window. Now I'm not great at being assertive in these situations but after 5 minutes my face felt on fire so I politely explained that I was feeling very hot and would he mind if I opened it a little bit. He replied "But I'm cold."
Not being naturally assertive, I said OK and sat back down. Thinking it through, I started to feel really mad that he didn't seem willing to compromise and open it just a little. I thought I'd have another go, this time sticking my bump out as far as I could (!) I said "Excuse me I'm ever so hot- do you think we could compromise and open the window just a little?" He said "No, I'm cold." He was wearing a T shirt and had a jacket on the back of his chair. I was about to say something I'd regret when he suggested swapping computers as his was marginally nearer the window. "That would be great!" I said and thanked him, probably rather too profusely.
We swapped computers and I opened the window literally an inch. He just came over and said the window was open too much!!! Grrrrrrrrrrrrrrrrrrrrr!!!!!!!! 
AIBU? Because right now I feel like he's being an absolute TW** and I can't concentrate on my work cos I'm so cross!
Give me an hour or two and I'll be fine, I'm sure. It's just right now I want to ask him who the F* he thinks he is!!!