Check your stop
Station opening hours and the last departure that serves your journey are different pieces of information. Use current official route results for your travel date.
Count the final walk
Work backwards from the departure you want and allow time to reach the stop from the venue exit. Keep the whole group aware of the finish time.
Keep another way home
Know what you will do if the evening runs late. Decide early whether to shorten the outing or use a different verified travel option.