I think giving gum with baseball cards might be a hint.
Along with chewing tobacco, there are Sunflower seeds.
I was hooked on seeds for a few years, along with about 1000 other construction workers at a nuclear plant.
There were sunflower seed shells all over the place. It kept the labourers busy sweeping and walking on the shells made a crackling noise.
It was so bad they banned sunflower seeds from the job.

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