There's a relatively new Internet meme known as "Third-World Skeptical Kid"...

[MiddleFingerMom]

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... that's showing some promise.
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Here's one that caught my eye that I thought would be appropriate for GD.
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[Shankapotomus]

1. Here's another ala George Carlin

"You're telling me people puke up a perfectly good meal?"

[NYC_SKP]

2. We use purified drinking water for everything-- I like this one:

[NYC_SKP]

3. I made one about ObamaCare...