You had close call, scary moment, or accident, towing?

The one trip I felt was scary was when we upgraded to a larger & heavier trailer. It was still within the Expedition's towing rating, but it was white knuckle all the way. Every semi, SUV, or car that passed shoved us around. Bought a used Super Duty for the next trip. A heavy duty pickup isn't required for all towable RVs until you get beyond 80% of a half-ton vehicle's limits IMHO.