I am currently living with two foreigners and met a very perverted foreigner.

Some foreigners are like this. They will only obey you if you beat them in pain. Can smoking and cats affect you in your own bedroom? If the impact is reflected, many places in foreign countries do not allow pets or smoking. In my opinion, the so-called foreign teachers in China are basically unable to stay in their own country, let alone a school run by your uncle. Too shy. Specifically speaking, you can report it to him yourself and have a tough attitude. If you feel that it is not easy to handle, you can ask a friend to help (make sure it will not be a hindrance). If it still doesn't work, just ask your uncle to fire him. Have courage, the days ahead are still long, haha.