A teacher battling cancer ran out of sick days. School employees showered him with theirs.

Teacher Robert Goodman ran out of paid sick days fighting cancer. In four days, his colleagues donated enough additional sick days to cover an entire semester.

(CNN)The chemotherapy dripped through a catheter in his chest. Cancer patient Robert Goodman had burned through his paid sick days while undergoing surgery and chemotherapy for colon cancer.

The Florida public school teacher figured he needed at least 20 additional sick days to deal with more chemotherapy, days he just didn't have. So on July 23, right there in a room at Tomsich Health and Medical Center of Palm Beach County, Goodman took a selfie, posted it on Facebook and appealed for help.
Within four days he had enough sick days to cover an entire semester.
"I couldn't believe it happened so fast," Goodman, 56, told CNN.