A restaurant is not associating itself simply by feeding people for money, unless they are advertising this event on their behalf. It’s not like they are sponsoring them or letting them use the space for free. However, I don’t know what type of event this was, but if they were in fact planning on putting up signage and things like that, then I’d be understanding. If this was an intimate gathering like a luncheon or holiday dinner or something, then this doesn’t make sense to me. For example, my job has holiday parties and often times rents out a restaurant. I’m sure they book it under the name of the company, but if you just walked in on the party you’d have no idea who it’s for or what we do. It’s just a holiday party. And that restaurant isn’t “associating” itself with us just because they let us have the party there. They don’t know us from Adam’s house cat, unless they were already knowledgeable about the company