Most people who start sports betting don't start out intending to become addicted. It's a process that develops gradually through predictable patterns. The biggest thing is an early win that hooks you, making you keep coming back and placing more bets. It's hard to draw the line when to stop when you're making money, and also vice versa.  I always hear "What if I win this bet?" I'm not saying it's a bad thing, but it can be if you can't stop and are doing it routinely.