There is fate, and there is a greater chance of bringing too much kneeling. Last time a classmate asked his friend to take it. As a result, his friend not only brought his, but also brought a bunch of 18x that others asked him to bring, all of which were deducted.

We only went to Japan to buy some local products as souvenirs, so we were not investigated.

It is really random. My feeling is that the customs knows that many people have brought them, but it takes a lot of time and energy to check them one by one, so some of them will be detained. It depends on luck. As for pulling half a box, it is too much to turn a blind eye, so it is deducted.