Im travelling from Clapham to Gatwick Airport next saturday (off to Rome with my mate who lives in Clapham North). I believe it's the 'over head' train we'll be catching, but what i want to know is, can you drink alcohol on the train? Why? Well, i've got 2 plastic champagne flutes and a small bottle of champagne to celebrate the trip, so wanted to start the journey off (its a surprise, she doesn't know) with a taste of bubbly!
Should i be ok?