What things are best not looked at before you pop them in your mouth?

They say the first bite is with the eye, but with many morsels it's best not to over-examine and merely pop it in. So what's your favourite thing to eat that others would baulk at the thought of passing their lips?
What things are best not looked at before you pop them in your mouth?
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This was accidentally placed in the wrong category. Place your bets if gag will move it to food and drink or sexuality.
What things are best not looked at before you pop them in your mouth?
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