When a family member asks you to finance a business venture, what should you tell them? Columnist Karen Caffarini delves into the pros and cons of investing with family and friends. Certified Financial Planner® W. Ben Utley explains that the biggest risk may not be financial, but emotional. "If [physicians] say no, they have to deal with the emotional hardship of their decision," Utley says. "How much will the relative dislike you? Will they still come over for Thanksgiving dinner, and will the kids still play together?"