When you are angry, you are more likely to make mistakes in betting. I have even found that when I am losing bets in a row and when I try to place bigger bets in anger, I do not win those bets. In most cases, placing bets in anger increases the chances of losing. When placing bets, give yourself a chance to observe the bets calmly first. If you observe the betting strategies without mental pressure, the chances of profiting from those strategies increase. I try to control myself when I am angry, but it is not always possible to do accordingly.
Few people can remain calm when faced with a loss. In most cases, when people are losing, even without betting money, they lose their heads. This is because they are people who have made up their minds that they cannot lose. I have seen many cases of people here in my country who play cards and do not put money in, in some cases, but I see them fighting because they keep accusing each other of cheating.
The loser is the one who always refuses to accept defeat. When money is involved, the fight becomes much more serious, reaching the point where people who were playing pick up beer bottles and hit each other on the head. When they play slot machines and lose, they start destroying the machine. Honestly, I wonder what the point is of someone kicking slot machines knowing they are made of iron.