There’s an online price list in Mandarin for public insults. “Idiot” is 55,000NT for each time it’s uttered. If yo refuse to pay or the idiot refuses to accept payment you could do some jail time.
It’s just something you don’t do in an argument here, unless you think handing your opponent a hammer to bash you with is a good idea. I recall someone suggesting going with “你好可愛” or the like. Maybe a well chosen cheng yu
I just checked because “dumb cow” or “stupid cow” is a quite common insult in German. It had cost someone 750 euro in Germany for saying that to someone (but including 1-2 other insults)
We somehow like to call people animals to insult each other. But, yes, Germany can be strict with regards to insults, if you are willing to go to court or if you are insulting a public servant.