Boxed warning Puns

The contractor was adamant that whatever was in the box would not go in the building at any cost. The plumber insisted he was just trying to do his job and that it was imperative that the box go into the master bathroom. The contractor turned him away despite warnings that there would be consequences. Upon hearing this, the owner of the building got angry and hired a new contractor. The new contractor also wouldn't allow the contents of the large box into the building. He was also fired and a new contractor hired. This contractor was a fun person, giving the workers breaks and buying them lunch. Out of fondness, the workers warned him that when plumber comes, he should allow the box to go into the building. So the contractor asked how important the contents of the box were and the workers replied, "Two people have been fired for not listening to the plumber, just let that sink in"