CATSA does have a program in place. It's not highly publicized, but just before the entry of these screening points—I'm not sure if it's everywhere, but I've definitely seen it in Toronto—if you have an item that is inappropriate for travelling but you want to maintain ownership of it, they have little mail envelopes and you can essentially mail it back yourself and get it home safely that way. We do encourage people to make use of those types of programs.
There are some jurisdictions where they have programs where you can put something aside and then pick it up later when you come back. I don't think that is really viable with the volumes that we have going through in Canada. If you have a very small airport then that might be a possibility, but certainly for major airports that doesn't work.
It's probably continued education and awareness, and giving people an opportunity to say they had an “oops” moment and letting them mail it to themselves or get it back home so they can keep track of it.
The problem is with the items that are not going to go well in the mail, such as liquids.