Don, I've got a whopper for you.
So, last night, I'm in photo lab.  Well, photo is supposed to be backup, to be on the secondary register at the front-end in case lines get backed up.
So I went up to the front to help cashier.  The first person I ran up stank of weed.  I started to smell something strong and odd.  Then, I recognize exactly what it was - weed.  I didn't realize, at first, where the scent was coming from, and I'm like, what's that smell coming from?
My curious inner-5-year-old, in "The Emperor Has No Clothes", was just about to blurt out, "I smell weed, where is it coming from?"  But I'd caught myself when I realize it's the woman right in front of me - the customer I'm currently ringing out.  I keep as calm and as straight of a face, and as much professional decorum as I can.  I smile and laugh inwardly, as I ring up the next woman in line.
An unrelated older man was behind the next in line woman.  The man asks me, "What's so funny"  I tell him about the woman I just rang up, who has now, left out of the store.  Next in line woman started smiling.  I asked her, "You smelled it too, didn't you?  She chuckled and said that yes, she did smell it.
Then the older man had the gall to ask me, "Well, how do you know what it smells like?"
First off, sir, I am a gay man.  Our people literally and provably came up with the expression, "throwing shade".  So, I kinda know it when I see it.  I saw it.  Plain as day.  Like, flashing, neon sign, saw it.  To be fair, I do fully get and understand that his choice of words may not have meant to sound like an accusation.  But if you got word of that specific question, the way it was asked, and answered - if the average person had just heard that question being asked, with no context or background, the first thing that would come to mind is that Person A is accusing Person B of having used drug before.
I saw what you did there, Mr.  I work directly with the general public.  Never a dull moment.