Teacher Leaves Message on Blackboard, Disappears 19.17K Hamilton Nolan 01/27/11 05:28PM Filed to: Mysteries Mysteries Teachers school daze Disappearances shutterstock Debra Schmitt, a recently divorced high school teacher in San Rafael, California, didn't show up for class last Thursday. Students found the message "Thank you everyone" on the blackboard, but no teacher. She hasn't been seen since. Ominous. [AP]