Suicide is one thing that is very good to talk about and prepare your group for before a situation arises.  Bring someone in to your group to talk about suicide and how to help someone who is having suicidal thoughts.  Many times the Diocese or even a local Catholic office will be happy to send someone to come and speak about these things.  To make the best use of their time invite another group or two to join you.   Be sure to have time of teaching on the Church’s teaching on suicide and how that plays out in helping others who are going through it.