- big things (e.g. someone dies) you cant avoid being sad
- small everyday things (e.g. someone cuts you off at the intersection) you have a choice to smile and treat it lightly or go all passive aggressive and spiteful.
Like why curse a slow driver when you can have a 100% positive attitude?
"You can do it! You can do it! There is a gas pedal. You're almost there, don't give up!"