Last thing to wind you up

This is probably going to sound really daft but our lodger has completely p'd me off!! Last week I made us a pie out of leftover chicken. It was pretty big and would do 2 meals for Dom, Sophie and I (the lodger buys his own food). On Friday, the lodger came home off his trolley and started cooking himself dinner despite having had dinner at his mum's. On Saturday Dom drove him to the shop to get some groceries and he replaced my pot noodle that he'd apparently also eaten the night before after we'd gone to bed. When I went to get dinner, there was a massive wedge out of the remaining half of the pie so there was only enough to feed Dom and Sophie. Dom says he didn't eat it, and I know I didn't so that leaves the lodger as Sophie can't get into the fridge. I was already slightly wound up because he can't be bothered to put his cooking stuff or plates in the dishwasher and just leaves them where he uses them as well as continually using our cheese etc.

And to make matters worse, the whole time he's in the living room with us, he's constantly asking me to get him a beer from the fridge. I don't mind grabbing one if I'm going out to the kitchen but most of the time I'm not. I made a comment about being the person who can walk the least distance (Sophie walks further than I can) and he just responded "yeah but you can still walk". I have to sit on a stool to cook dinner and I don't drink during the day so I don't have to climb the stairs to use the loo as it's too painful and he thinks I'm going to get up every 15mins to get him a beer?