I had a friend in high school who took a job at the Howard Johnson, and used the empty cans for that purpose. I wonder if you have to be 21 to work at the ice cream parlour in NY state now?
His mother caught him doing something similar (and worse) with Dust-Off (Freon). She yelled “Why can’t you use pot like the rest of the kids?!”
It makes me sad that folks are so stupid to do that.