I've had this for 2+ years. My bestest friend likes to hit me on the leg when she gets excited. Lucky for me my pain is on the left side, and I have always fought for the left side (no political reference here!). I have always been a total Leftie! (It's very hard being a leftie!) Have made sure that whenever possible that people (including my Husband) have been positioned on the "right" side of me. NO REFERENCE TO POLITICS