Opportunity Cost

Should He Mow The Lawn?

Should the teacher get a job as a lawn mower?

You guessed it!
My answer to every question is - it depends.

During the school year he could instead be making more money working as a teacher.
During the summer time, he would not be teaching anyway. Therefore any money he makes mowing would be extra.

Every choice you make in life and business has an OPPORTUNITY COST.