Homogeneity is much to be admired - in milk, for instance - but not for parties.
I don't know about you, but I can never get enough David Letterman.
A good laugh makes any interview, or any conversation, so much better.
To feel valued, to know, even if only once in a while, that you can do a job well is an absolutely marvelous feeling.
Don't confuse being stimulating with being blunt.
Parents of young children should realize that few people, and maybe no one, will find their children as enchanting as they do.