One of my children has stomach flu. She’s been vomiting and is more droopy than normal but the doctor said she should be fine within a few days. Quite unfortunately, that coincided with the visit of an old uni friend who’s in town for one night only. We’ve had drinks booked for over 2 months. My partner is happy to stay home and look after the children. I will be around 30 mins away from home. AIBU not to cancel on my friend?