Sherlock

Was watching the new show Sherlock last night. The one
were Dr. Watson is a woman.

A woman slaps Sherlock across the face. He is complaining
about it. Joan Watson says don't be a baby. He answers
that the right side of his face was leathery from the
number of slaps it had received and the left side of his
face was like a baby's bottom, and the woman had slapped
his left side.

I don't proclaim to be a Sherlock Holmes, but studies
have shown that 70-90% of the population is right handed.
Let's say that it is the lower number. That means that
roughly 70% of the women that hit Sherlock across the face
are right handed. If you stand in front of some one and
hit them with your right hand the 'blow' will land on their
left cheek. If you are standing in front of some one and
hit them with your left hand then the 'blow' will land on
their right cheek.

So is Sherlock saying that most of the women that hit him
are therefore LEFT handed? This is at odds with the % of
left handiness in the general population. Thus I believe
it was a mistake and he should have said that the LEFT
side of his face was leathery from the number of slaps
and the RIGHT was like a baby's bottom.