Had a party this weekend and a few people that came also brought their kids. My one friend was pounding beers all day from what I saw. He planned to drive home with his 5 year old and 3 year old in the backseat. I pulled him aside so I wouldn't embarrass him to say I didn't think he should drive. He says, "it's cool. I know my cutoff point is ten beers. I only had 9." I still didn't like letting him leave so I texted his wife. She came and took the kids home, he drove himself. He is now pissed at me but I don't really care. I feel good about what I did. I can't imagine driving with my kids in the car after even 1 beer, let alone 9. Btw I think 9 was BS anyway. He had to be in double digits imo.