The present invention is directed toward a container closure that prevents accidental initial opening of a container. The closure mechanism includes at least one temporary interlocking mechanism having a two part fastener that engages the moveable part of the closure with the fixed part of the closure. The temporary interlocking mechanism is invisible when the container is closed. It is positioned in a location different from the location of the orifice of the closure or from the path that the liquid follows during dispensing. This temporary interlocking mechanism includes at least one element that breaks or irreversibly deforms during the initial opening of the container. The additional force required to break or to irreversibly deform the breakable or irreversibly deformable element of the temporary interlocking mechanism during the first opening mitigates the risk of accidental opening during manufacturing, shipment or storage of the goods. Once broken or irreversibly deformed during the first opening, the interlocking mechanism does not interfere with the subsequent opening and closing cycles of the container by the consumer.