BeiBei have to go to the hospital to get flu shots. When the doctor rub the alchol on his butt, BeiBei asked his father" why we must rub the alchol before flu shots?" His father seriously said" the cotton contain alchol, so when your butt is drunk, you won't fell pain." BeiBei said" but i can still fell the pain." His father said" thats because your capacity is too great!"