If you were sent by your coworkers to purchase the pool of mega million/powerball tickets for your group and the clerk/cashier gave you one extra ticket for free because it was your birthday, would you be expected to share the winnings with the group if the free ticket was the winning ticket? Think about it.....the ticket was not purchased with the groups pool but you were given the ticket while on an errand for the group buying the tickets so what is the protocol?