Yea, you can bang up a rim riding on a flat tire. Better to jog along with it (one reason I try & wear the industrial strength bra if there's a risk of that).

I keep the box along - the one with the directions on it :-) Otherwise I forget a step like, oh, checking the tire for the glass that got me so I get it fixed and then it goes flat right away.

Most people I know either give it enough to get it home or they have CO2 cartridges; I have a Road Morph that *will* do the high pressure even though it's bigger. Hey, I can handle the weight :-)