It is bad to lose your temper over minor things
Mark's football team just lost, and a fan of the opponent is bragging about it to Mark.
Mark wants to say something to the fan.
Mark tells the fan to be nice since it's not that big of a deal.
Mark tells the fan that he'll knock him out if he says one more thing.
The fan agrees with Mark and starts to feel bad for bragging.
The fan feels that Mark overreacted to the situation and becomes scared.