Have you ever felt that uneasy feeling that sent shivers up your spine? Do you ever feel like you're being watched at public places like bathrooms, hotels, motels, or changing rooms? To tell you the truth, it is entirely possible this has happened to you without your knowledge.
What is one thing all the before mentioned places have in common? You guessed it, mirrors, or are they mirrors at all? Now why is that significant? All these are also locations one removes clothing for obvious reasons.
If you couple those locations and 2-way mirrors (2-way glass), you have a recipe for an amoral individual taking advantage of you.
Are you willing to take that risk! I'm not, and I definitely wouldn't want my wife and daughters falling into that trap.
Look, never leaving your home, or frequenting public facilities is no way to live your life; that's why I'm going to teach you how to recognize the difference between a regular mirror and a 2-way mirror (2-way Glass).
Mirrors and 2-way glass have similar attributes; you can see your reflection, they are made from the same materials and you use them to see.
 To determine which is which is not a complex process and only requires one tool, your fingernail.
Take one of your finger nails and simple place it against the reflective surface that is in question; look directly where your finger nail touches the surface, if there is a gap between your finger nail and the reflected image of your nail it is a regular mirror.
If no gap is present it is a 2-way mirror and you need to leave that facility.
The person I learned this from has an interesting catch phrase, "No Space Leave the Place".
It is extremely important to teach your loved ones this test! More times than not it is probably just a person sitting back there watching you; however it there is a possibility that they have recording equipment watching your every move.
  Conclusion: In today's age of ever expanding technology and amoral people that use it for bad, personal security and self defense is more important than ever; you must be vigilant.
Not paranoid, vigilant! We have the right to protect ourselves from the world of evil that is all around us and must take the necessary steps to ensure that our families and loved ones are also protected.
Whenever you go to a public facility with a mirror always perform this test so you don't fall prey to any amoral individual's fulfilling their sick fantasies.
 Remember the best time to learn your lesson about personal security and self defense is before something happens.