The cat followed me up an aluminum ladder to see what I was doing, paw over paw up the rungs. Attempting to go down the ladder was a disaster. He wound up hanging from a rung by his front paws and I had to extract him.
Last fall I was up the ladder pruning the tree and he had to see what I was doing, but that time he climbed the tree, not the ladder.
I guess the old saying about curiosity is true.