Good old fashion service

I had a small roof leak in my trailer , I needed some of the adhesive to re glue the rubber roofing to the new wood . I went to a rv repair shop called Jim Donnies in glen burnie md ( they started as a custom van builder back in the 1970's) The guy told me they just sold the last gallon and that the stuff was pretty expensive . I told the guy I need about a 1/4 of a quart . He goes in the back and brings out a gallon can about half full .

" Here , use what you need and bring back the rest when you are done , no charge "

Thats how to get and keep customers