Working in a fast production line requires not only physical strength and quick reflexes but presence of mind. In instances when the operating machine jams, you need to decide quickly to either temporarily pause the production and call an expert to fix the machine to avoid further delays or fix the machine by yourself. The first option is the more sensible one.
The speaker had an unpleasant experience of America and had a negative first impression. This feeling stayed with the speaker even after the event.
