At work we were working on a project to develop a new diagnostic test. We hit a road bump about 2 weeks prior to turning over the project to manufacturing. This put the entire project behind by a week. Fortunately, the engineers on the manufacturing and the development team worked overtime for 2 weeks to catch up and allow for the project to still finish on time. There was a lot of overtime that no one really wanted to work but that how it works some times.