I am a sheep. Should I wash the sheep that day or wash the sheep all my life?

No, this is a term in the "Yellow Calendar", which means that on this day, people who do things ("appropriate" things in the Yellow Calendar) will have conflicts with sheep (especially "immature" sheep)-that is, things will not go well as soon as they meet.

For the same reason, Dongsha means doing what Huang Li said was "appropriate". Generally, there are bad things in the East (Sha Qi), so try to avoid engaging in such activities in the East.

According to your situation, there are two explanations. One is that your son bumped into you on his birthday, and the other is that he bumped into you every day! But it always comes down to superstition,