The Porter's Wage

Mulla hired a porter to carry his bags home. Somewhere along the way, the porter got lost. Mulla spent ten days looking for him. On the tenth day, he was walking with some friends and spotted the porter carrying someone else's bags. Mulla pointed him out, but instead of confronting the guy, he turned and walked the other way. "Why didn't you ask for your bags back?" his friends asked. Mulla whispered, "Are you crazy? What if he charges me for ten days of carrying my stuff?"