Be on guard for large counterfeit bills being passed. Just received this warning from a friend:
Southwest quadrant faith communities are noted for their welcomeness, generosity and outreach to persons in real need. This open-hearted attitude makes members vulnerable to persons who exploit kindness for personal gain. Please avoid being scammed by persons seeking change for an undisclosed amount of money for seemingly legitimate needs. The large denomination realistic-appearing paper currency was actually counterfeit. Be wary also of offers to make "on-the-spot donations" that would require making change for the scammer's large denomination bill.