invite them over on brew day............let them know that it is a hoby and a labor of love these things cost money..........plus a tip jar..........they should get the hint. I have pub night once a month......for now the guys bring thier own beer until I get a pipeline going. They know the plans for the future, 2 guys have already picked up the costs of kits......
Good Luck and CHEERS
Good Luck and CHEERS