This whole thread is making me smile to see some of the things our felines try to get away with! I guess we've been lucky with our girl because she isn't prone to get into trouble or climb where she's not supposed to be climbing (not the same when she was younger, though!)
The only "trouble" she gets into now is knowing how to open the one bottom cupboard door but she never does it when we're home, just when we're all out and no one is in the house. I check them when we leave the house and somehow she gets the door open. I've thought about setting up a video cam to figure out how she does that because they close rather tightly... or so it seems!
It's resulted in having to basically baby-proof the house, just like I had to do when my daughter was starting to toddle around.