a Death in the family

“Death brings out the best and the worst in families.”

Suddenly you’re trying to cope with the death and your support system is no longer support, but a source of additional stress.

You are grieving the death, while feeling like you are losing your family as well.
Pretty soon, siblings descend into the "Mom always liked you best!" or "You always got your way!" squabbles that punctuated their childhoods. 

Maturity, reasonableness and rationality can fly out the window.