Ordered a Shiner Bock at the bar for $4 which I think is a quite adequate price and the business makes a decent profit. Ordered a second from the waitress.  Give her a five and she hands me back 50 cents. I asked her why my second beer was more than the first. She says when the band starts playing the price goes up.    Whaaaaat?\nI asked where that is posted and she said she didn't know.  I have never heard of that. I told the manager that I see that the owner has signs all over espousing his political views but not a single sign that says \""Take note:  when the band starts playing we arbitrarily raise drink prices\"".  I like to make informed decisions and I believe this is a scam when they don't make customers aware of this.   I have been there many times and spent a lot of $.\nI usually run a tab and may not have been aware of SF doing this in the past. However, when you pay cash it's obvious. The manager offered to refund my .50 but I told him to keep it. They apparently need it more than I do.  My advice:  order your drinks before the band gets going!  As for me, I will go elsewhere where they don't scam the locals...