When I have the time, I love messing with these people. That's assuming they're people:
Occasionally I get this call, usually from a (206) area code. When I do answer, mostly it's this cheery southern-sounding radio-voiced guy asking 'if I appreciate the service the proud men and women of fire and EMS do for our communities, and whether I'd like to donate to the benevolent society of police and fire blah, blah'.
Just for grins, after his opening shpeal, I pause for about one beat and ask: Are you a robot? This is usually followed by an obvious (processing) pause, followed most recently by a different sounding voice saying 'no'. So next I'll say I'd be pleased to donate, if they would tell me what the weather is like where they are right now? Without fail, the call drops.