Yeah, I think I'll just give the whole canister to my mom- I'm not sure how much baking she does anyway, but I think the canister is really hers anyway.
Grrr. Yesterday my Mom brought home a piece of cheesecake for my son, and I told him to bring it right back to them- it's not from a kosher restaurant, and I'm sure it has gluten in it. I simply don't want that in my kitchen!
So today, to be nice, she went to the kosher bakery and bought us an entire cheesecake.

Even if they didn't use any gluten ingredients in it (which I have no way of verifying) I'm sure it's cross contaminated just from being in a bakery.
She meant well, but it's so aggrivating to get this RIGHT after I made the decision to get rid of all gluten in my kitchen. I'm still VERY CAREFULLY serving regular challah rolls on Friday nights, but using paper plates and no longer baking them myself.
I'm planning to do a gluten challenge on my daughter on Saturday anyway, so I wrapped up the bakery box in 2 layers of plastic wrap and stuck it in the freezer to take out on Saturday morning.
What should I do in the future if people bring me gifts of gluten-containing foods? Houseguests often do stuff like that!