even back in the 70s as a kid Id sometimes come along with my dad
to work, he had a weekend job at a small printshop printing a community newspaper. My job was to watch the part with the flames. Occasionally when there was a paper misfeed somewhere it would catch fire.
In his memoirs he mentioned how at age 15 as a printers apprentice, his job was to clean the presses.. Once he suggested to his boss that it might be better to just burn out all the grease and dirt underneath the press. And Surprisingly his boss okayed the idea, even gave him the matches.. Not so surprisingly the fire got a bit out of control and needed to be put out with extinguishers, and number of the rubber rollers had melted..
(He died almost a year ago last June)