Signs found hanging on the doors of …

An Astronaut: OUT TO LAUNCH A fencing instructor: OUT TO LUNGE A nuclear Scientist: GONE FISSION A music Teacher: GONE CHOPIN, BE BACH SOON A dance instructor: BACK IN A MINUET A car mechanic: ON A BRAKE A chiropractor: BE RIGHT, BACK! A surgeon: JUST CUT OUT A dog trainer: WILL RETURN IN FIVE MINUTES. SIT. STAY. A nudist colony: WE'RE NEVER CLOTHED A dentist: OPEN WIDE

Bye Bye

Which sign did the eye doctor leave on her door when she went on vacation?