i am probably guilty of being one of those people on occasion. you enter the club and have calls to make, a limited time frame and you are just not paying attention to your surroundings and the signs. a quick word and i am on my way to the appropriate part of the club. i also think that when you see others on the phone your really don't think twice about it. imho you are absolutely correct to point out the signs and you will receive an apology from me.