Two mice at the same time? Do you use one with your feet? Do have one for each hand? Tell us more!

Not the original answer, but I also have a couple of mice (elasto) - one for each hand, and then between my split keyboard I have a trackpad.

As much as possible I avoid the mice but when needed it's good to have the option of changing between hands.

Maybe one is a decoy for the cat

Cats aren't so easily fooled...

Mine likes to sit behind my monitor and bat under it at my hand using the mouse.

Not OP, but I use 2 mice. I use a KVM, but have one dedicated monitor for my work computer so it's always visible (and 2 shared amongst other machines). So I have 1 mouse on the KVM, and one on my work computer so I usually don't have to switch out of my non-work session to deal with something that pops up on the work machine. Also have a programmable usb 10-key with some canned responses. And, no, I can't remote into the work machine from the personal machines (regulated industry).

one for each hand, it takes getting used to and i have hunch it changes you, neurologically

Guessing you have two cursors as well?

I moved the opposite way and got rid of my mouse for my desktop computer, so everything (except 3D work that is done with a drawing tablet) is done with the keyboard. Web browsing was the hardest to start doing without a mouse...

if you can run 2 drivers you will have 2.

this wont work with win, you have one cursor two controls.

im sure this has to do with mouse_msg being the same thing[handle] across the two meese.