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關於母親之吻的操作方法。如果孩子的一個鼻孔被小東西卡住了，你可以用手指閉上另一個鼻孔，對着他們的嘴吹氣，小東西就可能被逼出來。不，真的，這是一個真實的事情。