Physics knowledge of the third grade: The slogan of the gas station is "It is forbidden to transport gasoline in plastic barrels". Why not use plastic buckets instead of metal buckets?

If plastic is used to ship gasoline, during transportation, gasoline will shake in the barrel, collide and rub with the barrel wall, and generate static electricity. The plastic bucket is not conductive, and the charge generated in the bucket cannot be transferred to the underground, so when the charge accumulates to a certain extent, it will produce sparks, which will lead to gasoline combustion and explosion.