This is my first post, so try not to throw things at me

I have read the post for Disgusting Airline Passenger Manners. On a flight today from EWR to IAH on CO, I saw a passenger do something nice. Thus it occured to me to start a thread involving random acts of kindness from fellow passengers. I know it might not be as exciting as nose-picking or stinky feet, but I'm going to share anyway.

I was seated in coach, and was one of the last to board, as I was 4 aisles from the bulkhead. A passenger from First Class had a child in coach, and was unable to move her to 1st. Instead of causing a ruckus on the plane, he talked to the lady sitting next to his daughter and gave her his 1st class seat. (at this time about 20 pairs of ears perked up) I though that it was nice of him to surrender his 1st class ticket and sit in coach with no compensation for the downgrade. He asked for no money or compensation from the passenger whom switched seats with him either.

Has anyone else experienced/seen anything of this nature?