The scene: yesterday in the local Waterstones. I'm browsing, and out of curiousity I pick up a copy of On Board Flight 666, an Iron Maiden tour book thingy.
Surprise!Church friend, behind me: You're not planning on playing any of their stuff in a service, are you? (In a humorous tone, but nevertheless one that suggests it would be undesirable.)
Me: Well, I wasn't...but now you've mentioned it...