DS (5) wanted to be an entomologist for two years, then he added "wood carver" last year... and maybe a truck driver.

He's recently become frustrated that there aren't certain inventions (like a shot that won't hurt), so he's now thinking how wonderful it would be to be an inventor of useful items. I told him that children would praise him if he invented a way to administer shots that didn't hurt. He said, "Well, I don't think that's a good reason to invent something." (for praise) "Yes, DS, you are correct."