If you've never been to the Phoenix Open, let's just say it's unlike any other PGA Tour event you'll ever experience.
And that's much down to the famed par-3 16th hole at TPC Scottsdale, that gets turned into a 'Stadium Hole' for the week. Things also carry over into the drivable par-4 17th.
You can expect beer cans to be launched on the tee box at 16, general rowdiness of cheering, singing and booing in the crowd, and well, drunken behaviour just about everywhere you look.
Oh, and streakers, just like on the 17th hole during this week's Pro-Am...
"We encourage golf fans to enjoy the tournament, be courteous and to drink responsibly," Scottsdale police Sgt. Ben Hoster said.
American Bill Haas took the lead on the opening day with a round of 7-under.
Rickie Fowler is lurking two strokes back, with world number two Jon Rahm on 4-under.