What would you do?
At a theme park...
Child A runs to join a queue to a ride. Joins the queue. Parent of Child A parks up the buggy a little distance away and collects Child B. Walks to follow Child A. In the meantime another family has joined the queue behind child A. Do you...
1- walk past the family to join your child.
2- join the queue behind the family and call child A to join you.