A bad beat in poker can be very frustrating because you lose your hand to an opponent that had an inferior hand, or to an opponent that was classified as an underdog by the statistics.
The reason why many consider the bad beat as one of the most frustrating thing that can happen at the poker table is because it doesn’t make a difference between the amateur and the professional poker player. In the case of a bad beat, luck is the decisive factor, and not skill.
On the other hand many 
consider the bad beat as a blessing for poker because it makes the game much more exciting, and it makes the game less dull. The bad beat gives everybody a chance at the table especially at Texas Hold’em.
Many players will blame the bad beat when they lose a tournament, but that isn’t too important, what’s more important is how they get over this situation. The bad beats can influence a player’s playing style and it can affect his/hers bankroll.
A bad beat will make the player agitated and edgy and it might even insult the player who took his money. Of course he will try to get even and he will want to get that player’s money but that will lead only to more financial losses, because playing poker with negative emotions is something you should never do.
You must control your emotions and accept the fact that you might lose once in a while to opponents that had lower valued cards. It happens and you should get over it very fast. You should develop a strategy and if you respect it you will be able to make financial gains even if bad beats occur.
Never insult or criticize the player that took your money because it won’t do you any good. Even if you receive simultaneous bad beats you should remember that you are considered the favorite in many hands.
That means you will lose fewer hands than you will win. Never accuse a player that won with cards of lower value because you might be in his situation and you will be glad.