(CNN) At Mercy Children's Hospital, the nurses and staff of the neonatal intensive care unit pool their money to enter the lottery.

They've been doing it for for years, with varying degrees of success.

Last month, the staffers at the St. Louis-area hospital won big: $10,000 in the Mega Millions lottery.

But instead of divvying up the winnings among their group, they gave the money to two colleagues going through some tough times.

The joyous discovery

Read More