Being Selective

I've only been working at a major station, and by major I mean top 10 in the area, for about 8 months. About 4 months ago my assistant Program Director called me and a fellow co-worker into his office to discuss how to be better at screening callers. Things like being more selective, not putting on bad calls no matter how dead the calls are, etc. I've put this into effect, but only last night did I really stick to what was told to me. We had the Chief of Police on for his monthly call in show with another host. I get such jems like, "Why don't police ever wave to me when they drive through my neighborhood?" or "What's up with cops on their cell phones?". I generally let on almost anyone if they sound like they have half of a brain, but last night I really exercised my ability of cutting off any caller that I didn't think would be good for the show. It was fun telling people no they couldn't come on and ask their question, and it was also a wake up to me that I can be more selective without hurting the flow of the show.