Have heard in russia that a Mi-17 also turns an excellent barrel roll on a taxiway while too fast taxiing. Additionally to CAC Runaway words it's also depends from the windspeed and winddirection (liftvector) and the reaction of the pilot. Seems to be the best method to react with the collective (if possible) and to hold the cyclic neutral.
The problem of the smaller ships is the light weight (inertia) and the relatively high CofG (on piston helos the fuel tanks are very high compared with the bigger ships and their low fuel tanks) resulting in a much more faster rollover.
I believe the lots of accidents of that kind with uncle Franks toys staying in line with the mostly more unexperienced pilots (not at all, of course
).
If the peak of a skid gear is boring a hole on a slope it's nearly impossible to avoid a dynamic rollover.