If you are like most of us, you were hard-wired not to lie.   Telling a fib, no matter how trivial, makes you uncomfortable.   Still, you know that sometimes it is kinder to lie. Like when your best friend who weighs 220 pounds expectantly asks if her new outfit makes her look "hot." Or when your cousin asks if you enjoyed that great book on the the migrant patterns of whooping cranes that he gave you at Christmas.   But what about when the lie that will "protect" is not so small or subjective? Caregivers of people with memory loss are confronted …