When you blow a vape cloud in front of an oncoming Metro train, the cloud will be displaced as the train goes speeding by.
Blowing a vape cloud right as a semi truck roaring past makes the vapor pushed back. Next, the vapor is sucked forward as the pressure wave gets pushed ahead when the truck passes by.
Blowing a vape cloud right as a semi truck roaring past makes the vapor pushed back. Next, the vapor is sucked forward as the pressure wave gets pushed ahead when the truck passes by.
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