True, if there was an unambiguous sign on the window "No Google Glass," I doubt any of this would've happened. However, with regards to the religion or race pa

True, if there was an unambiguous sign on the window "No Google Glass," I doubt any of this would've happened. However, with regards to the religion or race part, it's very likely that someone ejecting on this basis will pick some other arbitrary reason rather than saying "we don't serve x people here." I agree with you that it's likely that neither party was completely clean, especially considering the guy knew the policy at a different but related establishment.