Maybe not so much aggressive as bloody annoying, when Luisa kept telling the silly little boy to go away, but he kept banging his gums and ranting in such an annoying inarticulate way.
So his agent warned him 'to keep his mouth shut' eh? How strange, as I'd imagine most agents would say to their clients positive things such as 'just go in and be yourself - the public will love you!' Hmmm.