What is something corny/silly that pulls at your heart strings and makes you shed a tear or two?

I saw an older man with his little grandson walking around the block yesterday morning when it was cool. The man was walking really slow, getting up there in years. The boy pointed at the neighbor’s old race car he had in his driveway and the man lead the boy across the street and up the driveway so the boy could get a good close look at it.