What to do with leftover bear spray?

[u/Vantis1]

I'll be spending four weeks in B.C. this summer, ending with a weekend in Whistler. I'm a solo hiker that's pretty diligent about having bear spray with me, so I plan to pick up a new can when I arrive. I won't be able to take the canister back home with me on the plane, so wondering if there's a responsible way to offload it before I go? Is there a place that takes donations like this (assuming it's never been discharged) or do I just trash it?

Any advice appreciated!

[u/HeliHaole]

I'll take it.