The Canadian pepper/bear spray thing I find amusing.
The last time we drove down Customs asked if we had pepper spray. My wife almost panicked as she had not taken her bear spray out of her fanny pack and went out to get it while Customs started the paperwork to confiscate it. She came in with it, Customs looked at the label, and told her she could keep it as it was labeled bear spray. Then they had to do more paperwork to cancel out the stuff they had started.
They did make me take my rifle ammo out of the case and keep it separate from the rifle tho.
Ain't beaurocracy wonderful?
At least Canadian customs folks are polite and friendly, unlike most of the surly US ones I have dealt with