I'm sure I've told this story before (lol) but my nephew was SO excited to get the new Luke figure in the black jedi outfit- I guess he was 5 (his birthday is May 25th 1978).
One of his little monster friends stole the figure - I think my niece said she saw it in his back pocket as he was walking out of the house (good plan). I got really mad and walked down the street with my nephew to the kid's house and asked for (and got) it back. :-)