I am actually in shock. How is it even possible to miss the sarcasm here?

Fingers on the side, yes. thumb and middle finger on the sides, index to "left-click", moving thumb from side to button to right-click Never had a problem with trackpads,it just comes intuitively. Can't say for the clit-mouse since I have never been able to use it properly, but most people I know who didn't start with it can't use it either.

yes, but bluetooth, not infrared. Bluetooth doesn't have to be aligned with anything

The palm actually almost never moves. "right click" with the thumb, "left click" with the index. The wrist almost never moves. Which is both an advantage and a drawback. It means it's pretty much impossible with low sensitivity on the mouse, but it's more accurate on high sensitivty since only the wrist moves, not the entire arm. To me, using the mouse the "right" way is approximately just as alien as using a keyboard backwards. The worst part of it was when everybody got Infrared wireless mice, those just will not work backwards and I just couldn't use other people's computers. I thank god every day for the end of that era.

He's talking about AZERTY keyboards, not canadian bilingual. Shift + "é" will just give you "2".

Amen to that. I use my mouse upside down too and I get all kinds of shit for that. But I beat absolutely all my friends who use their mouse the "right way" at winterbells (www.ferryhalim.com/orisinal/g3/bells.htm) . So clearly, it isn't a disadvantage. And same as the parent's collegue, I do it because the first time I held a mouse, it was this way. Somehow, Packard Bell had the P/S2 port on the front, so it just made sense. I was probably 5 or 6 and nobody showed me what the right way was. I only found out people used it the other way around about 4 years later. Just wait until apple comes up with an upside down mouse and people will see it as the most high tech thing ever made since the Apollo missions.