Why do they seem to dislike Mel Gibson

It was interesting to us that, without starting the conversation, people of this town would mention that they did not like Mel Gibson. It was almost funny.  Not that I defended the man, but I guess he and his crew were not the best guests when they used this castle as a location for "Braveheart". You understand that the movie was about William Wallace and Robert the Bruce and the bloody war in Scotland. The locals claim it was not just the fact that this is Trim Castle in Ireland. There are some great castles that would work in Scotland, but maybe the crew would rather get the Irish mad at them. It remains a mystery even after having it explained to us.