Get's kinda awful

turn around the mouse, than the left will be easy to click

ez

Maybe ur left finger is just weaker ?

put it in water, fixed

flush it down the toilet, fixed

Buy new one.. (;

American Idol

what mouse? had same problem with my da, hitting it few times + pulling fucked button up helped xd

The button is likely just worn down. There might be a small spring under it that has geborken, or perhaps some small piece of plastic is clogging it or something.. Either open up the mouse and see what's wrong or buy a new one, or both.

E: I mean, they don't last forever. The manual or something usually has a reference of how many clicks they last, but that's not too much use unless you have counted every click you've made.