Youngest Son turned 5 today. The party was at MomC's house. I got him a Fisher-Price dragon. When you squeeze a handle it flaps its wings and roars.
When he opened it, Youngest said to me "Daddy, did you think I would like this?"
I said yes, I did think you would like it.
He shouted back "OF COURSE I LIKE IT!"
MomC got him a Go Diego Go backpack. He immediately put it on, and he hasn't taken it off since except to load/unload it, or to go to the bathroom. I'd give 3:2 odds that he sleeps in it tonight.