A portable grill movable between an erected configuration and a collapsed configuration, the portable grill comprising: a valve and regulator assembly having a tank connector, the tank connector configured to removably couple a fuel tank to the valve and regulator assembly; a leg lock assembly; and a tank blocker operatively coupled to the leg lock assembly, the tank blocker configured to prevent the portable grill from being moved from the erected configuration into the collapsed configuration when the portable grill is in the erected configuration and the fuel tank is coupled to the tank connector, the tank blocker movable between a blocked configuration (4302, 4702) and an unblocked configuration, the tank blocker configured to: prevent the leg lock assembly from moving from a locked condition to an unlocked condition (3902, 4102) to prevent movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the blocked configuration; and allow the leg lock assembly to move to the unlocked condition (3902, 4102) to enable movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the unblocked configuration; wherein the tank blocker is structured to move from the blocked configuration to the unblocked configuration in response to a decoupling of the fuel tank from the tank connector. a valve and regulator assembly having a tank connector, the tank connector configured to removably couple a fuel tank to the valve and regulator assembly; a leg lock assembly; and a tank blocker operatively coupled to the leg lock assembly, the tank blocker configured to prevent the portable grill from being moved from the erected configuration into the collapsed configuration when the portable grill is in the erected configuration and the fuel tank is coupled to the tank connector, the tank blocker movable between a blocked configuration (4302, 4702) and an unblocked configuration, the tank blocker configured to: prevent the leg lock assembly from moving from a locked condition to an unlocked condition (3902, 4102) to prevent movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the blocked configuration; and allow the leg lock assembly to move to the unlocked condition (3902, 4102) to enable movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the unblocked configuration; prevent the leg lock assembly from moving from a locked condition to an unlocked condition (3902, 4102) to prevent movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the blocked configuration; and allow the leg lock assembly to move to the unlocked condition (3902, 4102) to enable movement of the portable grill from the erected configuration into the collapsed configuration when the tank blocker is in the unblocked configuration; wherein the tank blocker is structured to move from the blocked configuration to the unblocked configuration in response to a decoupling of the fuel tank from the tank connector.