Originally Posted by
Xyzzy
On occasion, I've been asked by the immigration officer whether I have anything to declare. If I do during that trip I tell them what I have. I think that's happened at YYZ preclearance m

re than anywhere else.
Mrs. Majuki and I got pulled aside at YVR preclearance once (after we stated that we had no declarable items). After a quick x-ray of our carry on luggage, we were airside.
Yes, I would mention declarations if asked at passport control, but most recent experiences across multiple airports have been CBP officers rapidly calling out names without passengers slowing down.