My husband doesn't realize and will not accept his brother in law is causing issues.

I don't condone my behavior in the least. But I will say that I warned him many times to give me back my laptop. I felt very triggered that he took my laptop and was trying to act like I was the one at fault. He got mad that I was trying to take my laptop back. I told him it's completely unacceptable that he's acting this way and he laughed that I was calling him unacceptable after what I'm doing. Basically all this pushed me to what I did. Again, I know I am wrong. But I'm providing context for my actions.

Thanks for understanding. MIL has been doing really poorly health wise. The only reason why I'm not so concerned about sitting in the living room ( believe me I try to be as non intrusive as possible) is because she gets a minimum of 2 hours of rest in the afternoon. She doesn't have to do much of work as I cook and do the dishes most of the time. She just has to take her medicines and maybe get some warm water from the kitchen. Sometimes she'll sleep 3-4 hours in the afternoon.

Can I just ask if it was wrong that I wanted to work in the living room? I always make sure to turn the light off and be quiet..I also just needed some space alone while working. Is this wrong that I took this stance?

I am just wondering what I could have done for this situation to not have happened. Was it wrong I wanted to sit in the living room? Especially when I said I will ensure I'm quiet? I'm just tired of paying rent and not getting space.