Small Change Tolerance Slippery Slopes
Camel (A) sticks his nose under the tent (B), which collapses, driving the thin end of the wedge (C) to cause monkey to open floodgates (D), letting water flow down the slippery slope (E) to irrigate acorn (F) which grows into oak (G). [Illustration by Eric Kim, from my idea.]
[I had to repost this, because of a technical error on my part; please click here to see that post.]