When a black cat named Grimsen wound up in a Nebraska animal shelter, workers couldn’t figure out why so many doors were left open all the time. Then one day they reviewed video security footage and discovered that Grimsen was opening doors by jumping up and pulling down on the door handles.

Now the staff has secured the doors so Grimsen can’t open them any more, but that hasn’t kept Grimsen from trying anyway. So if you happen to live in Nebraska and want a cat that’s smart enough to open doors on its own, consider adopting Grimsen for your home. Just keep your doors locked.

To learn more about the cat that can open doors, click here.