Wow! Thanks for the responses guys. It's sorta a dream me and my dad have had for over a year now. Just open the doors on a Saturday night and put out a sign to play pinball and eat pizza. The "business" would only be open... Say 2 nights a week... If that. I guess it wouldn't exactly be called a business but I'm not too sure what else I can call it.
Would something as small as that affect things like centrelink payments?