Alien bars tend to be reasonably friendly. But this Space Crowd Saturday, we have a more lively example of the genre with Keith Parkinson's 1994 cover to Harry Harrison's anthology Galactic Dreams.
The refitted Constitution Class USS Enterprise (NCC-1701-A) and Klaa’s Klingon Bird of Prey in orbit around Sha Ka Ree …. or Qui’Tu …. or Vorta Vor …. or Eden …. but actually, just a prison.