The clatter, clatter, shudder, judder of the jerking Underground train is sensory-overload enough.
But close your eyes and listen to the five different languages being spoken in your carriage at the same time.
This time, there’s another ingredient mixed in. Something slightly familiar — not at the top of the unpleasantness scale but pretty powerful all the same.
Wet dog!
Not quite sure which breed it is. It’s well-disposed enough, looking for pats and new friends on the Circle Line between Gloucester Rd and South Kensington.
But it’s not exactly small. It’s a big wet dog that, like the rest of us, has been out in the teeming rain and is now steaming invisible, unfathomable vapours from its coat into passengers, clothes and the train’s upholstery.
This is a sight and smell one hardly saw and registered on the Tube until recent years. You’d have had to cross the Channel to France to see dogs riding the buses and trains.
The Brits have always loved their dogs. But in their place. And that was not whizzing around with the bowler-hatted, pin-striped brigade doing The Times’ crossword tens of metres beneath London.
Travel posters and brochures are always full of exhortations to "see the sights" or "enjoy sightseeing with us".
There aren’t many tourist agencies which sell destinations by suggesting visitors "sniff the smells" or "enjoy smell-sniffing with us". But maybe they should. Smell is the only one of the five human senses which triggers nostalgia, because it diverts around the part of the brain that deals with conscious thought and links directly with long-term memory.
The smell-fest starts as soon as you land at Heathrow. Once the plane doors are open, the oddly sweet scent of thousands of litres of jet fuel creeps in. Soon, walking along the seemingly endless Heathrow corridors, another smell takes over — curry powder. It’s difficult to determine which spice is dominating, but it is probably cumin.
Heathrow generates its own shimmering blue haze. On top of the smell of avgas are diesel fumes from tens of thousands of vehicles buzzing along the ring roads and accessways.
There are so many dogs out and about now, of all sizes and shapes, wherever you go. Not just on trains, but on buses, in shops, cafes, libraries. The Covid-19 lockdowns are probably the cause. So many lonely, isolated people deciding to get a poochy companion.
Turn on the television and there are more dogs. The annual competition that is Crufts is being screened live on Channel 4, with all sorts of interviews and doggy facts and figures between competition events. It’s hard to imagine any other country would devote several days of coverage to wall-to-wall dogs. But they are gorgeous.
Unfortunately, my love affair with British dogs and fascination with the country’s distinctive odours collided rather unhappily on the leafy, slippery pavements of Newbury.
I got in my cousin’s car and thought I could smell something foul. Fearing the worst, I sat with only the heel of my right shoe on the floor and tried not to move. When I hopped out, I checked — yes, to my horror and disgust, a huge dog turd was squashed well into the tread.
Rubbing the shoe exceedingly vigorously back and forth in the longish grass made a bit of a difference. I scrubbed it hard on a shoe scraper and an old doormat outside a shop. I spent the rest of the day looking for puddles and deliberately walking through the deepest ones, getting some pretty odd looks.
Happier smells were also in the offing though, mostly food-related.
What could be a more British whiff than the one emanating from the local fish and chippery? The sharp crackling of the frying foods accompanied by the warming acidic tang of vinegar drifting down the high street on a cold, wet night. Then trying to separate the vinegar-congealed chips at the bottom of the paper bag.
Down the road at The White Bear pub, the rich scent of beef and ale pie with mushrooms and gravy hits you as you walk in the door, and your glasses instantly steam up.
Smells aside, the other four senses are also in overdrive, even if they fail to tickle the nostalgia bone the same way.
When it comes to London and the sense of taste, it is wrapped up with these memories of a war which ended a mere 20 years before I was born.
Saturday evening tea at Auntie Ada’s with rock cakes, corned beef or Spam sandwiches, or roasted hearts or something which the grown-ups called brawn, an awful tasting jellied concoction of goodness-knows-what. And always the reply to the incessant questioning of what’s for tea: "Bread and dripping."
But what are the senses to make of those English winter days when all colour seems to have been exported to more exotic places?
The clouds are shades of grey, the gnarly trees black, the muddy, flooded fields silvery-grey, grass and hedges dark greeny-grey, wet bricks dark brown. You’re crying out for a bright red car to come into view.
How do you know you are even still alive?
The fifth sense, hearing, comes to the rescue. The crows are cawing their melancholy cry, trains whoosh somewhere in the distant mist, circling planes make a muffled mechanical rumble up beyond the clouds.
Just as well. A flash of sunlight would have blinded.