I have had the experience of cycling slowly up a hill when one of the group I was with (a bloke, natch) rode alongside me and said, 'Nice low gear, good girl,' and patted me on the back. A friend was riding up a hill on a cycling holiday when some bloke saw fit to say to her, 'You want to change down a bit, love, makes it less of a slog.' In all the years I've been cycling, no woman has ever, unsolicited, said anything approaching this in terms of uselessness and sheer patronising ego-trippery. Men in general simply have no idea how often things like this occur, and not just related to riding a bike. It wears you down and makes you start to lose your sense of humour, especially when men then deny and deny that this happens with any frequency.