Just be ready for funny looks when you start testing on the gas station lot. No one has built up the nerve to walk over and ask what I am doing yet , so I am wondering what they tell their friends that they saw. No one is going to mistake me for a terrorist , and I just got my " Not a bad guy " certification from the TSA for my haz mat endorsement , so I can prove it. But I can tell that some people are really wondering what the heck I am up to.