Of course I can - but no-one is going to tell me I can't if I choose to. I enjoy drinking. I also enjoy reading the paper which helps me relax too. And listening to music. Or I could medidate expcept a tube journey isn't really conducive to this. Maybe I could light a few scented candles around the carriage?
Sometimes I would quite like a cup of tea on the tube - or even a nice cool soft drink.
But some days - I need a beer. I don't mean in an addicted way. But in a I'm in the mood for a cool refreshing beer sort of way.
Innit, I dont actually drink much at all; but sometimes when its hot I'll grab a nice cold can of lager to drink on the train home.