You are probably going to be liable if you allow another person to use your vehicle and they get into an accident because of vicarious liability (fancy legal word that applies when another person is liable for the actions of another even if not directly responsible for the injury). Even if you lend your vehicle with specific instructions to another person not to engage in a certain behavior/activity, under Florida law you will still be liable for injury resulting from an accident. So, for instance if a party lends his/her vehicle to his/her child who doesn't reside in the household and doesn't fit into one of the other exceptions, and the child is involved in an accident with another party who sustains medical injuries, the parent will be liable for the medical expenses and other expenses that have a causal connection to the vehicle. In a leading case that decided this issue, American Fire & Casualty Co. v. Blanton, 182 So.2d 36 (Fla. 1st DCA 1966), the insured authorized his son to use the vehicle and told the son not to allow anyone else ride in the car. When the son allowed a friend to drive the car and was involved in an accident, the court held that because of the dangerous instrumentality doctrine, the owner of a vehicle is responsible for its use except for a trespass or conversion of the vehicle. This law is especially important to the reason why you should consult an knowledgeable West Palm Beach accident attorney when you are involved in a Palm Beach County car accident. The Blanton court relied on another eminent case, Boggs v. Butler, 129 Fla. 324, 176 So. 174, 176 (1937), stating that if the owner once gives his express or implied consent to another to operate his vehicle, he is liable for the negligent operation of the vehicle no matter where the driver goes, stops, or starts."