There was a married couple, Tom and Ruth, who campaigned a 505 for a number of years. The old boat was showing signs of wear and Tom decided it was time to buy a new boat. While discussing the new boat with his wife, Ruth brought up the fact that their constant racing was also wearing on their marriage.
After talking about it, they both decided that it would be in the best interests of their marriage if Ruth crew for someone else and Tom find a new crew.
The new boat finally arrived and when Tom and his new crew brought it to the first regatta of the year all the other 505 skippers gathered around to check it out. On the stern, they observed, Tom had named his new boat Ruthless.