Ok bit of urgent advice needed here. My son and his friend and their 2 girlfriends have bribed me into taking them to Drayton Manor tomorrow. My son and his friend are 13 and the girls are 12. It's a 250 mile round trip so we have to set off early in the morning. They want the girls to stay over so we can set off first thing. I have a spare room so they can stay in seperate rooms.....girls in 1....boys in another. My mother has gone spare at the idea and said they shouldn't be staying over as it's not right. What would you do?