when i went buy splenda for the first time (in the box) i was in tesco and i picked up a packet and was like omg there is nothing in here. so i tried another one and shook it. still nothing. took me about 7/8 shakes to realise that they all must be just light(or empty).
Apparently Cheryl had done the same so we made Caz do it in her supermarket too. Hence splenda shakers