Can your pet open doors?

My first cat was all looks and no brains too. He couldn't figure out that a door that swung away from him and was sitting an inch open could be nosed open. The stray girl I took in as a companion for him had all the brains he lacked. The door to my room at the time didn't latch but sort of stuck shut. She figured that if she hooked her claws under the door and pulled up (sort of "plucked" at the door) she could jiggle the door loose and open it.