What is the most logical next event?

How to dispose of aerosol cans
Ensure that the can is empty.
Before you toss your aerosol can, take a moment to make sure that it is really empty. If no product comes out of the nozzle and it does not appear to be clogged, the can is empty enough to dispose of safely.
If you're not sure if the can is empty, try shaking it. You shouldn't feel any liquid moving inside.