Good idea, i would definitely put it away when strangers are around, and let me explain why i am spending this amount of dough on building this bong, first of all is a personal acomplishment, i usually like to complete projects i get focused on and second of all once the actual technology that the bong will be built withwill provide a much cleaner and different experience to the everyday smoker, it'll be able to provide much bigger hits it a smaller amount of time with a much smoother taste since the smoke will be actually chilled to a desired temperature, it gives the feeling kinda like when you walk into one of those huge freezers and inhale the almost frozen air in there, plus it wont require any effort of suctioning since the smoke will be pushed into your lungs by a controlled mechanism.
Once the project is completed i will probably have High Times and other big names know about it, maybe it will be worth the time, but i am gonna give it a shot, wish me luck.

Sincerely

Ruzzosplinter