Urban Myths get me down

Facebook can be fun but the Funwall feature depresses me as it seems to carry the largest number of urban myths I have ever seen. The most depressing of which I have posted below:

A woman at the nightclub, 'Crow Bar'- on Saturday night was taken by 5 men,
who according to hospital and police reports, gang raped her before dumping her.

Unable to remember the events of the evening, tests later confirmed the
repeat rapes along with traces of Rohypnol in her blood, with Progesterex,
which is essentially a small sterilization pill.

The drug is now being used by rapists at parties to rape and sterilize their
victims.

Progesterex is available to vets to sterilize large animals.

Rumor has it that Progesterex is being used together with Rohypnol, the date
rape drug. As with Rohypnol, all they have to do is drop it into the girls
drink. The girl can't remember a thing the next morning, of all that had
taken place the night before.

Progesterex, which dissolves in drinks just as easily, is such that the
victim doesn't conceive from the rape and the rapist needn't worry about
having a paternity test identifying him months later.

THE DRUGS EFFECTS ARE NOT TEMPORARY !!!!

THEY ARE PERMANENT !!!!

Progesterex was designed to sterilize horses.

ANY FEMALE WHO UNKNOWINGLY TAKES THE DRUG WILL NEVER BE ABLE TO CONCEIVE
!!!!!

The b*"%^*!s can get this drug from anyone who is in vet school or any
university.

It's that easy, and Progesterex is about to break out big everywhere.

Believe it or not, there are even sites on the Internet telling people how
to use it.

Please FORWARD ~ This to everyone you know, especially girls.

BE CAREFUL WHEN YOU'RE OUT AND DON'T LEAVE YOUR DRINK UNATTENDED.

Please make the effort to pass this onto all you know.

Guys, please inform all your female friends and relatives.

This has now been reported to have been used on 360 women around London and
over 900 in the United States.

GIRLS !!! KEEP YOUR DRINKS SAFE AT ALL TIMES

And men, look after the girls you're with.
PLEASE PASS ON.... (REPOST)

Just one moment spent looking on Snopes.com shows this is just an Urban Myth relying on the genuine (but hyped up?) fear of date rape. There is no such drug as Progesterex and if any man were planning an attack as reported above, they would be better off using a condom to stop detection after the event rather than a sterilization drug.