and no doors anywhere to keep them from getting in the garage or lab.
You must have had cats that were bored and sleeping all the time.
Boy I thought the main subject was your first tube scope, I must have been wrong !
Well cats are like huna beings, they share some common traits yet are all different.
Cerebrus will sure give me the correct number, but IIRC cats and related mammals spend like 80% of their time sleeping anyway... remaining 20% for eating fighting and fucking.
The way I remember all the cats we had, is that although they sure wanted to get behind doors, they didn't want it badly enough to jump on handle, or so rarely. They might give it a quick try and then give up rapidly. They would just meow for a long time till we came to open the door they wanted open. Most of the time would say OK you can get upstairs, go there.. as long as you don't pee please !
Then tehy would just find a spot to sleep, would come back doxwnstairs looking well rested and ask for food...
So no I don't remember them as being obsessed about opening doors to the point of trying all day long to improve their techniques, nor do I remember any of them going through the trouble of getting a toolbox and circular saw from the garage either...
They were mostly likeable I would say !
Also, they were cats, animals, so they spent most of their time outside living their cats life, and they would be given food usually outside on the terrace.
They were not lazy cats spending all day long inside, not at all. They would come inside only to say hi and ask for some food, that's about it.