Vaping? Pot use?
Good questions.
Jabs?
Vaping and pot use have been around for decades.
Best guess indeed
How about Covid jabs and boosters!
“Pot use?”
Could be. I know several stoners who smoke weed but would swear up and down that they’re “non-smokers.” They have some irrational idea that inhaling the combustion of their drug of choice is approximately on par with eating a mini-marshmallow on the scale of harmlessness.