 The classic example is a contract of insurance, whereby the insurer makes a promise of reimbursement in the case of loss (as, for example, by flood or fire).A potestative condition depends for its fulfilment on one of the contracting parties; it is entirely in the power of one of the parties.An example would be where Zola agreed to give her neighbour, Jaylynne, a sum of money if Jaylynne would cut down a tree that obstructed her view.