Lol! My 2 year old always got into stuff he wasn't supposed to I felt the same way you do!! Now he hates when I say it.. anytime I say it he puts his head down in defeat it is SO sad! I had to start getting creative with my warnings because I felt so bad. Lol it's kind of funny though, and a way better reaction than my three year old who when he hears "no no" will continue whatever he's doing anyways and even take it to the next level to test me! Little stinky.