< 1 min read
Rivkah Stern worked in a laboratory in a very collegial office environment where her co-workers often liked playing practical jokes. One of Rivkah’s responsibilities was keeping tissue cultures alive. So that she wouldn’t forget, she wrote "feed cells" on her calendar.
One day Rivkah arrived at work to find a post it note stuck to her cultures. It read “Give Jewish cells day off on Yom Kippur.”