Trick or just treat?

Often we tell people to think before they speak; especially kids.
Over the weekend we drove kids around for Halloween. They joyfully bounded up to house after house knocking on doors and/or ringing door bells.
As the door opened the kids would say, "Trick or Treat?"
All the while expecting to get a treat, never thinking about the rest of the phrase they had just said.
We were walking one street with them and waiting at the curb. One lady opened the door and the kids said, "Trick or Treat?" The lady said, "What is the trick?" The kids were almost oblivious to what she was saying. She went on to say, "Where's the trick? No one has any tricks? I want to see a trick!"
The kids were confused, expecting a treat and that was it.
Later that evening we had a conversation with other adults recollecting our youth and how we often had to do a trick or sing a song before getting a treat. But in those days the treats were full size chocolate bars or homemade goodies like candy/caramel apples. Maybe the fact that the candy is so puny has the kids thinking they don't have to do a trick for it.
Whatever the reason, the kids did manage to get a good bag full of treats and a few of the places actually gave out full size candy without demanding a trick.
–Until then,
Ken