YSK: If someone doesn’t want to celebrate their birthday, it’s not okay for you to force a celebration on them, interrupt their life with some embarrassing surprise, and harass them until they finally give in.
from /r/YouShouldKnow
YSK: 如果有人不想庆祝他们的生日，你就不能强迫他们庆祝，用一些令人尴尬的惊喜来打断他们的生活，并骚扰他们，直到他们最终让步。