If there was a sign out in front of a business that said we only serve (insert any ethnic group) would you continue to patronize this business? When a business is not wheelchair accessible they do not need a sign to discriminate against me. The lack of accessibility is discriminating. When you see this discrimination are you outraged? Do you question the store owner and ask why they are not wheelchair accessible? Would you tolerate this discrimination? Are you seeing all the invisible signs of discrimination now?