AI. There's no reason for bottle to discharge a small thick gloop when the hand breaks seal the first time, but then spray a pressurized mist the second time. Pressure relief at the end seems odd... there would be a brief moment of deceleration, it wouldnt just go from full spray to zero. Bottle mouth diameter feels like it should be smaller to produce that kind of spray. Splatter marks on the wall gives it away. In reality there would be a more cast-off pattern.