If it is in the house many people will just remove that and a little food around the place and consume the remaining food. But if it happens in a restaurant everybody will try to make a big issue out of it. They will get the plate removed and they will ask them to replace the entire dish.
But a single strand doesn't contain enough to harm you. Infact people working in mining industries can have a fatal amount of arsenic in their hair. And people working in different environments have different chemical signatures on their hair. Hair is hygroscopic and absorbs moisture and other viscous fluids very nicely. So your normal undyed hair can also contain some harmful chemicals.
And most dyes today come in creams so their reactivity is far too less. Powders react way too fast. So if you want to avoid any kind of sublime damage and irritation, go for natural creme dyes.
The stronger a light shines the darker are the shadows around it.
No life without Sun
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
There is a huge amount of chemical in all our hair dyes. Hence, there is every chance that the food becomes contaminated. It may not be poisonous. However, eating the left over food can cause enough harm, as the virus will spread within the body. Already, as even the most eminent doctors agree, our bodies are full of toxins, because we eat only heavily adulterated food. We have no vitamins, no proteins and so on. On top of this, due to our hectic life styles, the physical exercises -- very much needed to lead healthy lives -- is near zero, or totally absent.
Given these realities, it is wise for anyone to discard the rest of the food. More so, for pregnant women. We need to be very careful here and avoid all complications.