today, mike sugarman talked with fans and experts about the worsening atmosphere among fans, mike. >>ou've been around a long time and i have too, and i remember going to giants games in the 70s, you wore a dodger hat and took your life into your own hands. candlestick has always been a place to see a ball game but it is changing. i bit you're thinking the same thing i am. the cheapest tickets was $64. beer costs minimum $7.75. who can afford to get drunk and start fighting at a game? plenty of people, apparently. sam jones wasn't there. he gave up his 49er season tickets eight years ago. >> there's a lot of throwing beer cans and foul language and it's just not something that you would want to do with your family. >> reporter: candlestick can be a tough place to watch a game. is it getting worse? >> what we're starting to see in the culture is senseless violence show up in all kinds of ways. >> reporter: joe kersch is a sports psychologist who runs the think tank, american sports institute, and has followed such trends over 30 years. it is different, he says. >> you keep kicking the