When people get old and/or fat they trudge up stairs. If that’s how they need to play it, okay, but I must say it’s rather unpleasant to be stuck behind a trudger on the concrete steps of a New York subway station and being more or less forced to trudge along. It’s a bit more tiring that way and it certainly does something to your spirit to be made to feel like a mass-man. The only way to ascend staircases of any kind is to bound up them like an antelope. Or at the very least ascend quickly, two steps at a time. I tend to use the left side of the stairs for passing, of course, but that doesn’t work very well. Basically I just suck it in and deal with the trudgers as best I can, but I can at least mention the annoyance.