It's a very normal thing to be out and about and pick up things on the road. However, for the things that are picked up, some can be picked up, and some cannot be picked up. Because there have been many sayings about picking up things in the folk. For example, 3 things can not be picked up casually, pick up 1 thing to make the family uneasy, don't be inappropriate!
The first is a knife with a fishy smell. I believe that many people have picked up knives on the side of the road, and for picking knives, there is a knife that cannot be picked up. For example, the knife has a fishy smell, or the knife will attract a lot of flies. We all know that fishy smells and flies are caused by blood. Therefore, this kind of knife cannot be picked up. Therefore, if the knife is left at home, it may cause a lawsuit and thus cause unrest.
Secondly, you can't pick up toys. In the countryside, some children like to pick up some toys and take them to play at home. In fact, this practice is very unsafe. Therefore, the reason why the toy is thrown away by others. Mainly the toys are not qualified, the quality is not good. Such toys have the potential to cause radiation to children. And some toys are not of good quality, which may endanger the health of children. After all, children are relatively small and have poor defenses. Therefore, never let your child pick up toys that others have thrown away.
The last one can't pick up food. Why is food thrown away? Everybody knows it when you think about it. Toys will be thrown away, mainly food that others do not eat, or food that is difficult to eat. Secondly, some foods that have a musty and smelly taste will also be thrown away. Therefore, for some food, you can't pick it up casually, let alone pick it up and eat it. This can endanger the health of a family.