Proper foot massage, is it a pornographic edge ball?

Proper foot massage is of course legal. But if there is a sex trade, it is illegal. If the service personnel are really between the two when providing services, it is a side ball.

an edge ball, touch ball) means that the ball hits the edge of the table. In the actual competition, there are two kinds of edge balls: one is that the ball hits the eaves of the table to score points, and the other is that the ball hits the eaves of the table and cannot score points. It refers to avoiding sharp edges and main problems in conversation or action or comparing doing things on the edge of the prescribed boundaries without violating the regulations to playing the edge ball. It also refers to the existence of luck and the desire to succeed by luck.

Usually, athletes don't play the edge ball deliberately, because it is impossible for players to calculate the exact landing point of the ball, and there will be some errors more or less, so they don't play the edge ball deliberately.

However, you can often see the lens of the edge ball in the table tennis match. The so-called edge ball means that the ball hits the edge table, which changes the normal movement direction of the ball, or the ball touches the table table when it falls, but does not rebound directly. Usually, this situation is something that the batter and catcher can't think of in advance. Therefore, we can pay attention to the fact that when the batter hits the edge ball, he often reaches out to the catcher to apologize.