I didn’t post this earlier because I thought it might be some kind of spoof. (Virgin Trains? Really?) Apparently it’s not.
Virgin Trains set for £3.5m refurbishment – to remove smell from corridors
Richard Branson’s rail franchise set to work with the Government to finally deal with problem of unexplained spreading toilet odourIn fairness, smell is one of those things designers and engineers often fail to take into account. (Yes, I’m talking to all you fans of municipal composting.) Malodor can be hard to diagnose and even harder to eliminate. [Esp. when the malodor is caused by elimination!—Ed.]