YSK: If you threaten violence against guys who might hurt your daughter/sister/female relative, there's a good chance that if a guy does hurt her, she won't tell you about it
from /r/YouShouldKnow
YSK: 如果你威胁要对可能伤害你女儿/姐姐/女性亲属的人使用暴力，那么很有可能如果一个人真的伤害了她，她不会告诉你。