7 Out of 10

I have noticed a commercial on TV for a certain lotion. It is a commercial bragging about how their product is better than all the other ones, and how 7 out of 10 people prefer their product. At least, that's what they're trying to say. Instead they say 7 out of 10 knees prefer it, and 7 out of 10 shoulders and feet prefer it. Last time I checked the majority of the world has two of each of those body parts. I would really like to meet the person whose left foot prefers this lotion, but the right one prefers another. I would also like to meet the person with bipolar knees. I think they would be an interesting case for some scientist to study. Or maybe someone tried to simplify a fraction that no longer made sense once simplified. Yeah, I think that's the more likely option of the two.