The best burglar alarm. Security companies hate it!

Anyone want to know the best burglar alarm? Some fancy motion detecting alarm you might say? Nope, dust. That is right, good old dead skin cells. Here is how it works. The unsuspecting intruder breaks in. Because you read this from your favorite blog, you have not dusted in years. The intruder takes one whiff and BOOM!! he is coughing and sneezing all the way out of the house. At the very least it alerts you. What about you? Easy, just wear a gas-mask all around your house because what is more comfortable than watching TV through a gas-mask.