ashamed –adj. feeling shame or guilt
rude –adj. not having or showing concern or respect for the rights and feelings of other people; not polite
credentials –n. a document which shows that someone is qualified to do a certain job
challenge –v. to question the action or authority of someone
grandstanding –v. to behave or speak in a way that is intended to impress people and to get public approval
monopolize –v. to do something in a way that prevents others from doing the same thing