That sort of carelessness is an open avenue for problems that can arise. Some of the best advice that anyone can take is to be sure the bargain or deal with a friend is clearly laid out. It is precisely because this is a valued friend that this action should be taken. Our memories are not always precise and in time everything changes.

The Bible advises us to realize the danger of losing a friend and to go and make sure of the understanding and the friendship (Proverbs 6:1-4). A friend or brother once offended, even without knowing it, is very hard to win back (Proverbs 18:19). It is better to set in writing any clear understanding of a deal that is being made with a friend—and in doing so, being sure you keep that friend.