I don't think the general public should be allowed to bring their dogs along to shows.
But with that said, I sometimes take one with me who is not entered when im entered at a show.
I was a witness to this that bulldog did not bite your dog ,You and your dog walked passed them a man was holding the bulldog on a lead ,The bulldog never even growled it lunged up and the owner of the dog pulled him back,There were allot of people that saw this and then the owner of the dog put it away and came back then i noticed a lady saying sorry to you ,
And when she talked to the others she said you were upset because someone made a comment on why they don't want a great Dane again and she asked the people who made the comment .This is false information your putting out there as there was allot of witness and that Bulldog did not bite your dog.