on the trail I always stop to make sure that someone’s got all the bits they need and don’t need any help.
On the road, it depends – whether I have time, state of repair (if he’s pumping up chances are he’s good, if he’s standing looking at it looking lost then maybe not as good) Not that i carry a tool kit with me but at least I could offer a lift / make a phone call…..
I’ve given up a spare tube a couple of times (always carry 2 spare for this reason now), loaned a pump a couple of times, but the only time I’ve really been needed was with a kid (13/14ish) who had a puncture kit in his ‘all in one’ saddle pack but also had a chainstore bolted rear axle and couldn’t get the wheel out, and hadn’t sussed that you can do a repair without taking the wheel out. 10 mins well spent, the lad would have learned two things from it and maybe one day he’ll repay the favour, and it’ll go round into a big circle and save my ass one day.