Well I'm on the opposite side of the fence most of the time. I travel frequently and meet reefers in each country I go to. I have been invited countless times to peoples houses to check up their setups. Even had tank tours arranged with 5-6 tanks visited per day. all of them were strangers to me and I was a stranger to them.Most of them became friends and I have many frags from their systems and vice versa and we keep the long distance contact. I honestly say that showing my setup to people who travel to my country and getting invited to other peoples homes to see their tank is an honnor and makes the hobby much more enjoyable. I never felt threatened in my place nor in peoples places. I only felt uncomfortable once when I visited a guy who was totally full of tattoos and piercings... tat feeling only lasted for 5 min and I quickly realized I had nothing to worry about. I'm starting up a small fraggin business in a garage downstairs but would happilly invite people up to check out my setup as well (at least people that don't look scary) A simple surveilance camera in the tank and Frag tanks area keeps people from tempting anything against me or the tanks...
Its true that I'm feeling I sohuld reconsider after reading this thread!!!