Lug nuts of course..i had to do a tire change on my seldom used Canoe Car to get it ready for the season.WD-40 stuff and a long breaker bar were the only thing that would budge them.
if you were packed up and getting out of town with a million other cars outrunning a hurricane or----insert your disaster here---i don't think you would want to be by the side of the road jumping up and down on a dealer supplyed L wrench freaked out that the kid who put the tire on used a impact wrench at it's full setting..i went around to all the tires and made sure every lug nut could be removed with that X wrench by hand.
a remote canoe landing would be just as bad as the freeway out of Savannah..