Walking into a store and seeing a product that you designed. Are they stressful or pleasant and why. I work with both customers and vendors. They both are pretty stressful. Vendors are hard because you have to constantly keep track of them to make sure they are going to meet the deadline your customer has set.
Customers are better then vendors for the most part.
Customers add stress because they usually say they have to have this product by a date and need a quote fast. Then they wait 2 weeks before placing the order. But, overall it has its ups and downs. Year 2000 bug. Retaining qualified and knowledgeable engineers.