these are all life threatening bets that has taken a lot of lives just in a bid to proving a point that you are a good swimmer or to win the token that is promised to the winner of the bet. its all gambling and this can be really fun if safety measures are in place but without your safety as a gambler, there are bets you should never be a part of. other forms of bets that falls in this category can be betting on who can drink the highest bottle of beer within a stipulated timeframe or even taking some risky ride that is life threatening. life is always going to be more important than any short term fun or the reward that comes with winning these kind of bets.
In the case of gambling, one should never place any bet that can endanger one's life. Those who use gambling to earn money they lose money if they lose in gambling, but when someone bets their life, they can lose their life. Moreover, in this type of betting, it is not the case that large amounts of money are bet. Many times, it is seen that there is a tendency to place such bets among friends over trivial events. Those who do such things with the risk of their lives should definitely be careful. There are many examples where people place bets with friends in anger, and later they face big losses. There is a risk in gambling, it is financial risk, but human life is the most valuable, so one should refrain from placing such bets.