I love the "whoa, that's a really dark beer, I don't like dark beers they are too bitter and heavy"
I tell them to shut up and try it, then they start saying that it tastes great, way lighter than they thought and not bitter.
Then I go on to explain that color of a beer is the least accurate gauge of a beer, you want bitter? Wrap your BMC drinking mouth around a pint of west coast IPA.
Conversely, want something sweeter? try my chocolate mint milk stout, or a pint of my caramelized fig Belgian Dark Strong Ale
I love it when they say they don't like "dark beers" too. My other favorite is when they taste it and say "that's not bad!" Of course not! It's a great beer!