zorro ... You may want to try and check local laws for your area. Placing hidden cameras in certain places could get you in trouble. Hidden cameras in places like bathrooms and bedrooms where it could see images of people in compromising situations could land you in big trouble with the law if caught. There was something on the news here a few weeks ago about a guy going to jail because he had a hidden cam inside a fake smoke detector placed in his house in his bathroom.
That said you could look into one of these smoke detector cams and place it outside your door to watch for anyone entering your room. I have seen them for sale somewhere and will post back here if I find the link.
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