One thing I have learnt to appreciate in recent years is clean air on buses! In my youth I would often be chasing a West Brom Transport (pale blue/yellow) service on a frosty morning to get to work.Climbing the stairs only to be confronted with a Bonfire of fags/smoke .The lower deck was non smoking but you could never get a seat.anyone had similar experiences? or should I say- Ring any bells :)