Two moms get together, with kids, for a playdate. Sally drives to pick up Mary. Mary changes mind and wants to drive (easier bc of car seats). Sally moves her car to road. Mary says, no park in the drive (two cars wide, several cars deep). Car moved, again.
Phew. Kids in and buckled up. Moms in front, ready to head off. Mary backs up and side swipes the other car.
Who is responsible for paying the costs? Mary was driving. Sally sitting in passenger seat. Is Sally obligated to offer to pay deductibles? Moms are not friends, but two of their children are, and will probably continue to be off and on for years.