In order to keep the peace and not disturb or affect other passenger's experiences, you're not allowed to run, skate, bike, vape, litter, drink alcohol etc. Understandable.
Oh, but when footy comes around, all rules are void. I witnessed the full beauty of how people make glasgow. You're allowed to drink, smoke, scream, wear colours, wave flags, carry a knife, wave your bits around, dump your chippys, gang fight, disturb other passengers about how great your team's legs are, set off fireworks etc etc.
Football makes Glasgow. Keep it up scotrail. Ya bunch of wonderful people.
Great prices too.