Swallowing is one of the three ways that a toxin can enter your body. But you aren't going to drink a glass of solvent, so swallowing isn't a danger, right? Suppose you handle something that has a toxic powder on it. Then, while you're thinking over a problem you chew a fingernail. Or maybe try to pick that irritating celery strand from between your teeth. Even if you never put your fingers in your mouth, simply handling food later can result in swallowing a toxin.
You already know not to eat or drink while working with toxins, but do you also know?
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