I work from home and get calls from some guy (always male) from TAI Chicago, raising money for police, firefighters, the Wishing Well Foundation and others.  I am not exaggerating when I say that I get 5-10 calls from them a week, requesting money for the same charities multiple times.  You can say no to one guy, and another one calls you back the next day.  It's incessant.  Unfortunately I don't have caller ID so  dash for the phone every time.