razorfishsl said "Why should i be forced to pander to a potentially mentally ill individual and reinforce their delusion?"
1) I don't know why you think you're being forced to pander to anyone.
2) "Potentially mentally ill" is a very curious phrase. Many people experience mental illness, just like many of us experience physical illness. Sometimes it's acute (death of a loved one), sometimes chronic (depression, PTSD, long-term unemployed). I have learned to not assume about the health of others.
You worry about whether someone else is potentially ill? Do you find yourself avoiding situations that might expose you to someone who's ill, to the point where it affects your well-being or removes you from activities that you usually enjoy?