Give her an A+ for attitude. Her answer has to at least make you laugh and feel good for a little while. Sounds like you got a great work out. You might want to check for wheel rotation and brakes binding while you are at it.
My oldest (12 yo) was lagging behind our 9 and 10 yo so I got behind him and saw the rear wheel wobbling back and forth and alternately touching the brake pad on each side. Just tonight, I straightened his rear rim and he should be good to go again. I think I may have told him a million times to stop going off curbs! He tells me I exaggerate!