A Russian once joked to me that the only tool he needed to work on his Lada was a hammer.
I fixed a stuck caliper on a truck with a hammer once. I broke the metal part of the hose from the frame to the caliper off, held it up against the frame and hammered the broke end shut. That released the pressure on the caliper and I was good to go.
I drove the truck 500 miles and bought a new hose a few days later.