I have a coworker who got into cycling, bought himself a nice Cervelo, and later an even nicer Wilier. Not only does he not carry pump or spare tube, he doesn't even know how to fix a flat. Takes it to the LBS. FOR FLATS!!! I don't understand it.
In addition, he's got a terrible sense of direction, so if he flatted and called his wife, he might not be able to figure out where he is for her to come get him. Mostly these days, though, he just rides indoors. Fewer flats and it's harder to get lost, I guess.
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