1. Do you get vexed up at the player?
2. Do you take it as a common loss by the team just like other days? or
3. Do you curse the player for that?
We need to understand that nobody is above mistakes, inasmuch as the own goal is not intentional, we have to take it as one of those unfortunate incidents in football. I'll naturally be angry at the player that mistakenly scored in his own net, I'm losing my bet because of his blunder, but then I'll move on from the lose after the match. Where I won't forgive the player is if it's proven that the own goal is as a result of match fixing, then as many as are involved in it I won't be happy with them. That is why I always advocate to always gamble with the amount that you can afford to loose because anything can happen in a match, it can favor your bet or it won't.
Football is an uncertain game, where anything can happen. We cannot forget that players are also human and it is natural for them to make mistakes. Not all players can keep their performance the same in all matches, in some matches their performance is very good, in some matches their performance is very bad, they do not lose matches intentionally.
But yes, nowadays match fixing is a very bad thing. Currently, as a result of match fixing, every is being cheated. Nowadays, through match fixing, very weak teams defeat very strong teams with the power of money.
That is, Team-A is a very strong team and Team-B is a very weak team, but before the match starts, Team-B fixes the match with Team-A and bribes Team-A with a lot of money to lose the match, as a result, Team-A intentionally performs poorly and loses the match.
So, whether it's a sports game or a casino game, every gambler should gamble with money they can afford to lose. Because currently, many teams illegally win matches through match fixing, so even if your favorite team is playing, then also you cannot bet beyond your means.