I am pretty sure Canada celebrates Halloween American-style, I wonder how many other countries do so?
The only American Halloweens I've experienced have been in movies or "It's the Great Pumpkin, Charlie Brown."
Kids normally wait until dark, not go out in broad daylight (as in E.T.), and they don't normally die in gruesome ways (as in any specifically Halloween-themed American movie). If Linus and Lucy's parents were real and Canadian, I think the kids would be in foster care or shipped off to a relative, since their parents don't seem to care that Linus spent all night in a pumpkin patch and it was Lucy who got up at 4 am to get him back inside.
One of the home care nurses yesterday was telling about one year when she was working the late night shift and had to sleep earlier... and kept getting awakened by kids who knocked on her door in spite of a sign saying not to. Kids don't seem to say "Trick or Treat" anymore, they just knock or ring the doorbell... incessantly if you don't appear in a nanosecond with candy. That's what finally made me stop. I asked my dad to disconnect the doorbell and from then on Halloween at my place was done in stealth mode. I kept the lights off from sundown to about 9:30, at least the lights visible from the street. So the kids could knock and yell all they wanted, they weren't getting anything.
I was given a treat last night... by the pizza delivery person.

She had a pocket of lollipops with her to give away to any kids she delivered to, and by the time she got to my place she just wanted to be rid of them.
This morning I regifted it to my home care nurse, who has a kid. She was happy to have it, since they don't do a lot of trick-or-treating in her family.