Nobody Noticed

Within the organized mess called the construction site, a new shipment of steel pipes had just arrived. They were in different sizes, from small, thin ones to huge, thick structural pipes. Individually, an average steel pipe was quite lightweight compared to its sturdy appearance, but since these pipes were packaged in huge industrial bundles, they weighed a few tonnes altogether. 

The foreman was in charge of ensuring that the correct sets of pipes were delivered to the right place within the construction site. He was almost finished giving out instructions when his full bladder complained, giving him no choice but to answer nature's call right away. He called another senior colleague to finish up the task.