I'm the kind of person who would give a fire extinguisher as a housewarming gift.

I used to live for the satisfaction of pulling thicc lint sheets out of the filter every time I used the shared dryer in my student house

You're a good friend, people are surprisingly clueless about shit like this and the risk is substantial. Most people don't care about their friends that much. You should be proud of who you are, you're a good one.

I've always just trusted my friends know to do that. Maybe not always warranted, but these days it certainly is