I'm a little confused/concerned. I just played the game for the first time, and while I had the volume at 100%, I never heard a single thing from the game. No music, no sound effects, nothing.
On top of that, after I think one of the first Shift XXX+ rounds that I did, I accidentally gave one of the patrons a drink that they weren't requesting, and once I got to the All Clear! notification and ran into one of the VIP Lounge doors to end the round, said patron was blacked out, and it just stopped and I couldn't find a way to exit without Task Manager. Was there a control that I forgot about when I hit OPTIONS before playing the game or something?
Otherwise, this was a fun little game and I really enjoyed it!