Customer audit. The two auditors were cool potatoes and went over our shop with a fine but not unreasonably fine comb. Been here for over 35 years, first such audit for me. Reason is a new product we're developing for said customer. Because we have not had one complaint from them in more than 20 years of working together. Still, feels good to know all the work we put into QC and documentation hasn't been for naught. Glad it's over though. Going to have a cold one or two tonight.