All the time. There's a bar that my friends and I frequent here that recently decided to reinvent itself. It went from fun, hole-in-the-wall bar to a shitty attempt at an upscale, classy bar. Well we still thought of it as our local dive so I arrived one day in jeans and a white v-neck, which was pretty typical. The bouncer tried to toss me out because plain white tees were not to be worn at the bar.

Also, we couldn't go to the bar I really wanted to go to on my 21st birthday because we were all wearing basketball shorts and tees and their dress code required nicer attire.

Another bar I used to go to was so obviously racist it was actually a bit funny. They had a few bad months where black guys were starting fights all the time and black girls were always screaming at each other and ripping out weaves. So the owner got sick of it and went a month straight playing '80's hair metal and country. The white population didn't mind this at all, but there were still some black people coming around. So their latest effort was to ban Timerland boots, if your underpants are visible outside your pants you can't get in, no flat-brim hats with that stupid fucking sticker, and no grills (things on yo teef). When we started to find out about these rules we thought it was hilarious that a bar was getting away with being so obviously racist, but after a while it got a little old and we then realized how horribly offensive it was.