Umzekelo, kwishishini lamayeza, apho ukuthobela imigangatho engqongqo yokupakisha kuyimfuneko, iirobhothi zinokubeka ngokuchanekileyo iibhokisi zamayeza okanye iibhotile ngaphandle kokubangela umonakalo kwiimveliso okanye kwiipakethe zazo, ukuqinisekisa ukuthobela imithetho nokunciphisa inkunkuma.