A patient who cannot cope with the loss of his job and potential loss of his family’s home and confides that he is thinking of committing suicide. How would you approach this situation?

A patient who cannot cope with the loss of his job and potential loss of his family’s home and confides that he is thinking of committing suicide. How would you approach this situation?
A recently widowed patient is making a sexual advance and comments toward you. What steps would you take?