in the two ombres since he had arrived at that time , quack had sent him on innumerable missions and tasks , ranging from the minor arranging for ronald barthy-scrumdent to get his mid-morning cup of tea ( and , in fact , considerably energy-consuming task , requiring arthur to make train journeys to get the right sort of yaks milk and bongve bong boofeys milk and in the right ratio and ten decateaspoonfuls of sugar , all the same brand , and all from different newsagents stores run by people named pete provided their surnames didnt begin with consecutive letters of the alphabet or end in any letter before t ) to the major travelling to another country to establish a reform of the electoral system ( hop in a wormhole and youre there ) .