Have you ever considered of mousing ambidextrously?

[Peter Hansen]

Roy Smith wrote:
> "WangQiang" <WangQiangg at gmail.com> wrote:
>>I'm also a programmer, as working in front of computer day and day, my
>>right hand is so tired and ached. So I tried to mouse in both hands. I
>>find that it is really an efficient way to release pains. At first I
>>switched the mouse buttons in windows control panel, but it taked me
>>several steps to finish it
> 
> I never understood why people switch mouse buttons.  

It seems likely it's because the index finger is generally more dextrous 
than the middle finger, in spite of how often some people use their 
middle finger during driving or, say, pair programming...  ;-)

-Peter