I am brazilian and a friend of mine went to that show and told me that some idiot boys there were throwing things on Glenn while he was on stage, I guess that explains his behaviour during the interview , he's not an asshole, the problem was some stupid boys who don't even know who Glenn Hughes is !
There are a lot of nice people in Brazil , but like in any country, a lot of idiots too ...
Thanks Glenn for enchanting our ears and hearts with such great voice and music ... u are great ! the best singer ever !