Cumulative stress.

The slow buildup of cortisol from daily stressors culminating in a tipping point that is disproportionate to the final, often minor, stressor.

Sobbing uncontrollably because you spilled your coffee. Punching a wall because the printer jammed again. Yelling at a spouse because the toilet seat isn’t positioned as you wish it to be. Cumulative stress doesn’t justify harmful behavior, but does explain it

Or perhaps I’m just projecting my stresses into your unrelated question