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No, because 1. I don't think I have ever seen a flea, 2. Most insects don't even feel pain (except the fruit fly) because they lack nociceptors, and 3. fleas don't have families or friends to run to as they are solitary organisms.
Have you ever felt bad about killing a flee?
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No, because 1. I don't think I have ever seen a flea, 2. Most insects don't even feel pain (except the fruit fly) because they lack nociceptors, and 3. fleas don't have families or friends to run to as they are solitary organisms.