The teaching of Buddha says that our family is our nemesis in our previous lives. I guess that is why we are so horrifically mean to our family, but so patiently indulgent with friends. Be it the raised voices or the snarky tones or the harsh words, they just spit out, so mercilessly and readily and swiftly. Or worse, all three spewing simultaneously! We just simply snap at each other so easily.
Perhaps after a lifetime later, it's payback time now!
Or this is just in my family?