YSK about the Mother's Kiss Maneuver: If a child gets a small object stuck way up one of their nostrils, you can close the other one with your finger, blow into their mouth, and the object might get forced out. No really, it's a real thing.
from /r/YouShouldKnow
YSK关于母亲之吻的操作方法。如果孩子的一个鼻孔被小东西卡住了，你可以用手指闭上另一个鼻孔，对着他们的嘴吹气，小东西就可能被逼出来。不，真的，这是一个真实的事情。