In High School I hung out at a local card shop often enough that I was usually there a couple days a week.
One time a guy - who turned out to be another dealer- dragged in a big box of 78 RC cola cans to ask if they wanted them. They pointed at me and said "we don't but that guy does" Six bucks for maybe half the set
Then I had to call mom for a ride home ....Lucky she was tolerant of my collecting.