I had the misfortune once to travel from Paris to London on the Eurostar train with my mate. Basically, you would not want to have been sitting anywhere in Coach 9, the journey I endured possessed the most unrelenting releases of methane and sulphur, which wafted into the air-conditioned carriage every 10 minutes or so. I kept worrying that the train staff would smell the highly obnoxious fumes while serving dinner (thank goodness there weren't any other passengers in my coach). My senses were completely knocked out, faster than Tyson in one! Noise was not an issue, the releases were all muted, but then that's why they were akin to biological warfare. How anyone was able to sustain such practises on a 3hr journey I do not know! It don't stop once we arrived in London. He kept going in the taxi home. I can tell you my windows were fully wound down yet the stench was still overpowering. My mate likes his Doner Kebabs with hot chilli sauce....