In an embodiment, a lock command is received from a thread that specifies a resource. The mixtures of the two liquids are delivered from a sump, or collection basin, to a separator by means of a venturi pump. This distributed approach to intercept handling allows for a much less complex virtualizer and moves the intercept functionality up into each partition where each external monitor uses the resources of the corresponding guest operating system in that partition to resolve the intercept event. The guide mount includes a guide mount slot whereas the flap member includes a flap guide slot extending outwardly from the pivot axis through the flap member. When a dose is set, the dial sleeve is rotated and translates away from both the outer housing and the inner housing.