My mother is sent by the company to accompany the guests to dinner. It wouldn't be an accident if she didn't come home all night.

Singing, taking a bath and playing mahjong after dinner may cause the possibility of not going home for one night. Call during the day tomorrow. If I can't reach you for 24 hours, I don't think anything will happen. My mother who dares to stay out for the night is probably single, which is understandable, but I asked her to tell you a similar situation later. If you are not single, leave it to your father, and you don't have to worry about it.