Tiszteletem, föorvos úr (1980)

A surgeon performs life-saving surgery on a car mechanic's young son. The happy father wants to express his gratitude with money, but the professor refuses, because this would go against his principles. The father cannot accepts this, but got an idea by seeing the doctor's dodgy car: one night he steals it and repairs it in his workshop. Once it's returned, the doctor goes mad. He wants to pay for the fixes, even if he have to borrow money for that.