Instead having the trowel handy to recycle the extruded mortar for the next head joint it falls on the hop in shoe maker land. .
Being an open forum as the name implies,here is a point of view on the subject expressed by mason and author Gerard Lynch.
"Some inferior methods of applying the head joints in the name of production are practiced by the bricklayer. In the shoving method,as a brick is laid and the excess mortar is squeezed out of the bed joint the trowel blade collects it cleanly in a swinging action,and places the mortar upon the cross-joint face of the previously laid brick on the front and back arris. Where this method is adopted only the outer arris is buttered,especially in tight joint work. Thus one has,constructionally,a weak joint and alas another point of entry for wind driven rain. This method was traditionally used on the walling,which was grouted upon completion of each course and insured good solid walling.It has no place on modern cavity or veneer construction."