Bad
trauma - A deeply distressing or disturbing experience, especially one with lasting emotional impact; a psychological or emotional wound, often resulting from an intense or life-threatening event.

Childhood trauma can have long-lasting effects on a person’s mental health
ambush - To suddenly attack someone after hiding and waiting for them:
The brigade walked quietly to the hidden spot on the hill, patiently until the enemy walked in the valley below, so that they could ambush the unsuspecting enemy, who were taken by surprise.
rigmarole - A lengthy and complicated procedure that is mostly a waste of time (sometimes pronounced rigamarole)

Gino just wanted to renew his driver's license, but the rigmarole at the DMV meant he would spend hours talking to lots of people, and he ended up leaving without his license.