It is important to know who you call a friend. When you know your friend well, you can avoid certain problems because you know what causes misunderstandings. Some friends can be very controversial, and if you place a bet with one of them, they will never agree that you won because they will make the terms of the bet so complicated that they will always see where to stand and argue just to justify why you did not win. In some cases, even when the loss is obvious, they will refuse to give up the item, claiming that they were joking. Personally, I do not bet with a friend so that our relationship remains cool.