coast is clear

"coast is clear" は2/8/2011に取り上げた表現ですが、Theodore Boone the Accusedに次の様に出て来ました。 Theo knew he had found his mother’s divorce cases. He quickly exited, returned to the screen saver, and stood without touching anything else. He took a deep breath and turned the doorknob, certain that someone was outside just waiting to pounce on him. But the coast was clear, and he hurried back to his little office where his dog was still sleeping and everything was safe.