Re: A mouse? How quaint.
Mine yesterday were standing over my hands, just in front of the keyboard, and that's okay as I can reasonably well touch type.
The second cat seems to want to nudge the mouse in my hand, and that can be disastrous when trying to drag and drop files, or simply type into a remote session. My hands move away from the keyboard fairly fast when they come in. After 5 minutes though, I do have to move the cats off to do any work.
On the upside when I'm doing a presentation and cats come in during a client call, you know the cat lovers by all the smiles, or sometimes a request to see the cat.
So it goes many ways to stopping work.
However, it's hard to keep a straight face when they deign to show their bums to the camera, and it's being recorded. Or when my nose is being tickled by a tail and I need to talk about something important/esoteric and useful