CATSA has its "overachievers" just as TSA stateside, unfortunately. Leaving YEG a few months ago, unbeknownst to me my Kippie bag had developed a small split and birthed a 1/2-oz., nearly-empty cosmetic bottle into the depths of my carry-on.

Bag was pulled. Screener did not dump the bag but reached directly where they'd seen it, pulled it out & asked me with typical Canadian politeness what it was.

"Moisturizer."

"No problem, then. Let me just put this in a bag for you."

From behind his station he pulls an official CATSA baggie, labeled as per reqs in French and English. Pops my tiny empty bottle into it with visible satisfaction, carefully returns it to where he found it in my luggage, and wishes me a safe trip.

Delay to line of hundreds behind me, trying to escape Alberta winter for Mexico: 2-3 minutes.
Cost of imprinted official baggies that could have been used for curling scholarships: unknown.
Boggle factor: infinite.

I've kept the baggie as a souvenir. Plus, if I ever need to carry actual exploding shampoo or some such, I'm confident it will keep my plane safe.