I am clearly not a lawyer: if you tell passport control that you lost your drugs on the plane, there will be no evidence to prosecute you, but they probably won't let you in.
More seriously, just don't get on the plane, then after a period of time contact your family and tell them you got refused entry. Spend a day or two at the airport or a nearby hotel.
More seriously, just don't get on the plane, then after a period of time contact your family and tell them you got refused entry. Spend a day or two at the airport or a nearby hotel.