I've received this email before, and tracked down a requote online:
Annually you will shake hands with 11 women who have recently masturbated and failed to wash their hands.
Annually you will shake hands with 6 men who have recently masturbated and failed to wash their hands.
I'm wondering if there's any evidence to support this. At the very least, I'm surprised by the ratio, given the fact that men seem to masturbate with higher frequency than women:
Similar results have been found in a 2007 British national probability survey. It was found that, between individuals aged 16 to 44, 95% of men and 71% of women masturbated at some point in their lives. 73% of men and 37% of women reported masturbating in the four weeks before their interview, while 53% of men and 18% of women reported masturbating in the previous seven days. (Cited source in Wikipedia)