Earlier this month, Sam paid John $80, in advance, to mow his lawn by Thursday. When Thursday came and the lawn was still not mowed, Sam phoned John and demanded his $80 back. John apologized, but said that he was down on his luck and had used the $80 to pay his rent rather than buy the gas for the lawnmower.

Sam instructs his lawyer to file suit against John. The lawyer assures Sam that he is 100% sure that Sam will win the case, but told Sam that he is better off not filing the suit.

Sam does not understand why the lawyer would say this, since Sam is certain to win the case. What would you say to Sam about why the lawyer might have said this?