I've let acquaintances who are down on their luck live with me before, but in each case there were weird boundary issues. Like, I ask you not to use my fancy conditioner, then find that you've squirreled away a jar of it in my spare room. Or you eat all the food and drink andalusia the liquor and smoke all the weed and expect me to cheerfully keep it all coming.
This has happened three times. Each time my intentions were good, but the person I helped ended up resenting me and feeling entitled to everything I owned. So, never again.