Good tniop! Just kidding. I do sympathize, despite being a righty.
A psychological study was done in England a couple of years ago of left-handed vs. right handed people that seems to indicate real differences -- not just preference.
The test consisted of placing people in front of a television monitor where they watched a tape of people who said various statements -- some true, some false. The people being tested were asked to identify when the people they were watching were telling the truth, and when they were lying.
Amazingly, the test found that left-handed people have significantly more difficulty accurately discerning a lying person from one who tells the truth.
Now I get it. No wonder that girl I loved so much (Susan Pickering...) left me for that jerk! She was left-handed!
By the way, did you know that the great golfer Phil Mickelson, who plays left-handed, does everything else right-handed? He learned to swing a golf club as a child by standing in front of his father and "mirroring" him -- and so, like all things in mirrors, did it "backwards"!