Description
In the episode, Mr. Burns falls ill and desperately needs a blood transfusion. Homer discovers Bart has Burns's rare blood type and urges his son to donate some, promising that they will be handsomely rewarded. However, after receiving the blood, all Burns does is send the family a card. Enraged, Homer writes an insulting reply, but Marge convinces him at the last minute not to send it, although Bart mails it anyway.