Why parents sometimes attack us

Parents have an instinctive need to protect their cubs from threat or danger. However, since they no longer have to protect their children from Sabre Tooth Tigers, this instinct sometimes thrashes around looking for something/anything to protect the children from. This may be a teacher, a coach, … or you. This instinct can be fierce (it varies from parent to parent) and quite irrational. If a parent suddenly lays into you over some trivial matter that offended their child, just listen and then shrug it off, do any damage control possible. They can't help themselves.