Most everything I've written in this genre is at least loosely based on true experiences and actual people I have known.  I change their names and often locations, but everything else in the stories is absolutely fact-based. 

Seriously, though, I have written about real people I have encountered and will continue to do so.  The point about anonymity mentioned earlier isn't really a factor, since I doubt very much that the people involved would ever read these stories, and perhaps nobody I know would, either.  Still I feel a responsibility to disambiguate any identifiers like name or home location on the slim chance that I might be divulging a sensitive secret about anybody involved.