My guy (cat) used to love to investigate the kitchen counters.. I broke him of that. Every time I saw him on either the counter, or the kitchen table, I went over to him, loudly saying "Bad Boy!! Get Down!! Down" BAD BOY, NO!"""
I had to it several times, before he became trained. At first he would just look at me, and stretch.. I literally had to shoo him off it...
Now, he will occasionally check out what is on the kitchen table, but when he sees me, his ears go back, all I have to do is point my hand down to the ground and say, "get down" or "Down"....
He does not jump on my counter anymore.. although, who knows what he does when I am sleeping...
Even when he runs out of my apartment, all I have to do is keep my door open, go after him and point--he runs back in, with his ears back and body low to the ground...
He was trained well by his original owner.. I just had to update his training...
I love my guy..