In "The Crucible", what bold measures do John Proctor, Giles Corey, and Mary Warren take that could get them all into trouble?

All three try to get the court to see the girls and others are lying to the court. Giles Corey tries to get the court to see the motivation behind the witchcraft charges. He accuses Thomas Putnam of trying to kill his neighbors so he can buy their land. He also accuses Putnam of persuading his daughter to make accusations against George Jacobs so that his land would also be forfeited. But since there is no proof of the charges, he is not believed, Proctor gets Mary to say she never dealt with Satan and that her friends are lying. However, Mary can't fake a fainting spell so her testimony is not believed. Proctor then admits his affair with Abigail. But when Elizabeth will not confirm it, Proctor is not believed. Eventually, Corey and Proctor are also arrested but Mary saves herself by recanting and rejoining Abigail and the rest of the girls.