My cat can open the door handle in my 73 Trillium
4500. I suspected it was inevitable and now that he goes for leash walks he opens the door from the inside. Not good because he let himself out and was gone for 4.5 days here in the Mojave before I found him. Edit to add: he is really a scaredy cat though and not the sort that I trust as an outdoor cat.
I'm trying to figure out how to fix this. From the outside I just wedge a 2xf against the door so it doesn't open but, that won't work when I am inside.
My neighbor things we can install a bolt an we are going to the home depot today to see what we can do.
Duct tape and monster tape doesn't work. Smart kitty just jumps up and rips it off.
Another neighbor suggested a plastic cover to go over the door handle to keep him from opening it.
p.s. with Mr. Marco the Tuxedo cat.