Linus has discovered that the pins which hold the pneumatic closer on the storm door are easy enough for little fingers to take out. He can take both pins out and remove the closer, at which point he hands it to us to replace so that he can take it out again. I am working on teaching him to reinstall the closer. Then the game can be his and his alone. Do other children this age (18 months) do this? Or are we lucky?
Here is a video of his work.
He almost has it, all by himself, but he still wants me to fix it.