My mother in law wants me to buy her a new TV but I don't want to.
Why don't you want to buy her that?
Because she's always bringing me trouble, I was almost stuck in a burning house because she didn't learn how to use a fire extinguisher. Why would I buy her something nice?
Wow, that sucks that she almost got you killed. I'm sure there's a lot of tension between you two, and you are not obligated to get her anything until you are comfortable enough to. She should at least be remorseful about her actions first.
No, she started acting like she's the victim here. I wish she wasn't my mother-in-law.
You don't have to buy someone something just because they want you to. You guys obviously have things that need to be worked out that are much more important than material items.