Don't know if this is a fact, but would be interested to know!!

Somebody put something on my daughter's back the other day and thought it was very amusing because they said that she would not be able to remove it!
She said that it was not a problem because she could reach all areas of her back by putting one arm over her shoulder and reaching across with the other hand.
They then did an experiment in the office and found that the men could not do this, whereas all the women could.

We tried it at home and both my daughters and myself could do it easily, but my husband could not!