That fine line between clever and stupid, discussed in "This Is Spinal Tap"? Yeah: preeeettty sure I have never known where that is. ;-) Then again, not sure most other people are good at it either. Yesterday I posted about how I had cooked some tuna sashimi in the oven and how surprisingly good it tasted that way. And the first comment was, no lie, a question about what I could mean by cooked tuna sashimi.
Clearly I had played dumb so well that I rendered someone else even dumber. It's a living!