No it can!! It will do that!! Quite scary...
Thanks to technology i have a couple of 1MB mpegs demonstrating the problem:
Pls only download if trying to help, as there are download bandwidth restrictions:
http://www.geocities.com/merouby/bucking1.MPG
http://www.geocities.com/merouby/bucking2.MPG
In bucking1 you see it happening in the beginning but normal driving torwards the end.
In bucking2 it happens towards the end.
Cheers.