There is a famous story of Hernando Cortes that goes something like this:
“Hernando Cortes had a plan, he wanted to lead an expedition into Mexico to obtain its many treasures. He presented his plan to the Spanish governor, who was so excited that he gave him eleven ships and seven hundred men. Cortes did not tell the men or the governor the complete plan.
After months of travel the eleven ships landed in Veracruz. Cortes had the men unload everything from all eleven ships. As they headed into their new adventure the men turned back and saw all eleven ships burning! Their reaction was to fight back, as surely an enemy had initiated such an attack. Cortes halted the men, as this was in his plan, he had ordered the ships to all be burned. Cortes did not know what he and his men would encounter in their expeditions.
What he did know was that by “Burning the Ships” he had completely eliminated their option of going back.At the same time creating an intensely powerful motivation to succeed.”