How to kick out guests who are playing mahjong at home?

Use offense instead of defense, that is, use a proactive attitude to block the chatter's way to visit. You can first think about what time the other person usually chooses to come to your home, and then "kill" someone at his home a quarter of an hour before he comes to visit. In this case, you change from the host to the guest, and he changes from the guest to the host. In this case, you also control the initiative of conversation time. The more times you go there, the more he will be "glued" to your home, and his original habit of going to your home will gradually change. After a while, he'll probably stop "making the same mistakes" again.