Rabbi YY Jacobson chazzered a beautiful vort of the Belzer Rebbe:
A famous educator in Eretz Yisroel asked the Belzer Rebbe why the style of education changed in this generation, what was wrong with the simple פאטש from previous generations?
The Belzer Rebbe opened up a chumash, and showed him the possuk (במדבר יב יד):
“ואביה ירוק ירק – her father SPITS at her”
In Targum, which was written a thousand years later, it says:
“אלו אבוהה מנזף נזיף בה – if her father would CHASTISE her”
In Rashi, which was written a thousand years later, it says:
“אם אביה הראה לה פנים זועפות – if her father SHOWED AN ANGRY FACE to her”
Nowadays, a thousand years later, concluded the Belzer Rebbe, we must even be careful with our facial expressions when dealing with children.