Gokiburi means cockroach in Japanese. Cockroaches are often found in old houses in Japan. Even if using preventive methods, such as washing dishes soon after eating and not leaving food for them, it might be impossible to avoid them.
Despite their nasty appearance, gokiburi cannot harm a human being and they are not known to bite. They might however spread disesases, because they crawl in severs and eat dead bodies of insects or animals. Therefore it is recommended never to leave plate of food to the table overnight.
Gokiburi are very intelligent what comes to hiding or finding a hiding place. It is said that if you see one gokiburi, there are hundred in your house. One example of gokiburi's intelligence is the fact that if it escapes on tatami, it will run along the colored seams rather than crossing over the mat, as they are harder to spot on dark colour.
There are various gokiburi poisons in Japan. The recent spray freezes gokiburi rather than containing poison.
No matter how you try to prevent it, you might eventually meet one of these insects in your house.