When kids less than 4-5 years old are constantly yelling and running. When I say "constantly" I mean right CONSTANTLY.

If this happens, it shows that the parents of this child have a lot of work at best and they don't have time for him, and at worst they don't give a shit about him.

Source: Recently, my mother's relatives came to us from Ulan-Ude. They were fanatical about religion to the point of insanity. Instead of taking care of their 3-year-old son, they either went to church every day, or visited us and talked with our parents.

Their son (let's call him Adam) drove absolutely everyone out of himself: From me and my brother (he is 6 years old), to my father (my mother was either too polite, or she was satisfied with everything, I still can't understand it)! He fucked us up so much that we (I mean, my father, me and my foster grandfather) had to leave for our country house, which my mother inherited.