I mean you'd stop yourself when using whirlwind sprint, but what if a dragon used it as an attack? You only have a second to think before you get hit by a freight train.
Alternatively a high level disarm shout should make your day very interesting.
Or maybe a slow time/elemental fury shout to dodge your arrows/lay down some serious hurt.
Those dragons guarding high altitude locations with sheer cliffs... one dragon powered fusrodah and you're flying off the cliff.
Also: is there a mod that ups the damage of the fire/frost shout? (both for you and the dragon)