I read something to this effect last week, I checked the law booklet published on the Ohio Attorney Generals site-   
"ORC 2901.05 sets forth the rebuttable presumption. 
ORC 2901.09(B) establishes that there is no duty to retreat before using force if a person is lawfully within their residence, vehicle, or a vehicle owned by an immediate family member"   
Friends don't let other friends not carry.