I once had a 6' step pitch over on me and I rolled on the ground while hold my paint bucket without spilling a drop.
Another time, I was painting a street light and the base was rusted out and it fell over, sending me to the ground from an extension ladder. I dropped my gallon of black oil paint on purpose in mid air and it landed square on its bottom and did not tip over.
I find those spills to be the best approach to spillage, that way dirty works do not even need to be handled.