Harassed in Tokyo for speaking Chinese to my 7-year-old — has anyone experienced something similar?

I’ve been living in Tokyo for years, and something disturbing happened today near the Arakawa 2-chome tram stop.

I was speaking Chinese to my 7-year-old daughter while we were waiting for the tram. An elderly man nearby suddenly started slamming his metal cane against the railing every time I spoke — loud, aggressive bangs, clearly meant to intimidate us.

I didn’t engage, but my daughter got scared and I’m still shaken.

For those who also live in Japan:
Have you dealt with something like this?
How did you respond?
Is reporting it even useful in this kind of situation?

I love living in Japan, but moments like this make me feel very unsafe as a parent.

Any advice or shared experiences would help.