Acceptable. People who complain that other people are drinking something different to themselves are usually fascists.
Poor pub etiquette includes:
- If you are male, following your friends into the loo. Unless they are female of course.
- Putting loads of coins onto the pool table and expecting it to be your go time and time again.
- Insisting on "winner stays on" even if nobody else in the pub wants to.
- Putting Meatloaf on the jukebox, or any other crap that lasts 20 minutes.