You were always a bit odd and you never completely fitted in. You always had a knack for herbs and poultices, and you've used it to cure and help people. You live isolated because the others are ready to shun you and cast you out for your ways, although they still seek you out looking for a remedy. Sometimes when there's no cure for an ailment, people come to you looking for the mercy of a painless end to their suffering. A few come for the means to get rid of someone who has wronged them, helping them too is also a mercy.