Max is WICKED-SCARY smart. Literally--when he was a puppy, Mom used to let him ride in the front of the truck, until he figured out about shifting--he almost killed them both trying to shift gears for her! Of course, he HATES being exiled to the back of the truck in his crate. Whenever Mom says, "let's go for a ride", he runs to Dad's car, because he's allowed to ride in the back seat in it and that's among his favorite things. But if she opens the back of the truck--he runs to the back yard and has to be chased down.
He also climbs ladders, so it's not safe at ALL to leave them propped against a roof--if Dad's going to work up there, he has to take cell phone to call Mom to come put the ladder up for him to get down--if he leaves the ladder in place, Max will join him up there, thinking he's king of the world. And he'll go up the ladder into the attic if someone leaves it down too. Of course, that one he'll go back down, so it's a little less trouble.
And he knows about cleaning up spills. If something gets spilled, he'll either go and get a towel from the laundry basket, or bring Mom the tank vaccuum cleaner from the closet!
Oh, yes--he opens unlocked doors all by himself, the closet is no trouble at all for Max. If you forget to lock the bathroom door, you're going to have company--I guess he thinks if you can watch while he has a poo, fair is fair. The only reason he can't get out of the house is that the have those hook and eye latches on the storm doors, and he's not tall enough to reach it.
It's a really good thing he's a Medium Paw and not a Big one!