Whenever I use a mouse, I get a weird itch in my middle finger that's totally just mental. The only cure for the itch is to right click. It's like if I use the left mouse button a lot, I have to add some right clicks to balance it out. After I've used a mouse, if I still feel the itch in my finger, I'll press down on it with my thumb until the itch is gone. In fact, I was just doing this right now, since I was clicking earlier, but typing now. No mouse in hand, so I have to press my middle finger on my thumb until the itch is gone.
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