Originally Posted by igloocoder

Screens are, in general, courteous. I can't remember the last time I heard yelling from any of them at any airport (domestic or pre-clearance area). Generally you can expect a thank-you from them when you hand over your boarding pass and when you're done your wanding or pat down. If they are looking to address me I'm regularly called Sir (i.e. "Sir please come through now").

People in TS/S regularly talk about the lower educational standards of the TSA. I'm guessing that the standard at CATSA isn't much better, but I've only once thought about it when going through the screening process.

I also rarely find that the screening areas are understaffed. Usually there are enough lanes open to process the passengers in under 10 minutes. I've never thought about it until now, but the lowered pressure might have something to do with the more agreeable nature of the screeners.