This is one of my new friends. He and I both took a travel voucher to take a later flight and go through Vegas on our way to New Orleans. We both had A boarding. This is important - it gets you on the plane first.
But when we got booked on the next flight, we lost it and had B boarding.
When we got to Vegas, he went up to the gate agent and got medical boarding. He came to me and told me that I could board with him so that I could get early boarding too.
What a sweet guy - looking out for his new friend!