I have a bengal, as does one of my close friends. I love him more than anything on earth, but he's trouble...
I'll give you an example.. my chameleon cages are on 4 foot high stands. The sides of the stands are flat, smooth wood. On top of those 4 foot stands are 3.5 tall cages. 2 nights ago I found him on top of those cages... 7.5 feet in the air, 4 feet of that being sheer plywood.
He's big.. he can stand up and rest his chin on the dining room table. He's on top of the fridge in a single leap when he wants to be.
He's exceedingly loyal, has to be with me all the time. Very very vocal. He doesn't trust strangers at all, and he is generally "Bad" all the time.. but so sweet and loving that its impossible to be mad at him. They're too smart to be disciplined. They just get sneakier.
He also likes to play rough.. He likes to bite my feet when I'm sleeping, hard...