Locker and crate smokes/foams

[Marquesas]

I'm mixed on this. On one hand, the implications of this are incredible. On the other, I like being able to mix stuff in floor closets and have foam suddenly come out of the floors.

I think it's kinda dumb that you can mix something INSIDE a container and the only things aren't affected by it are the ones INSIDE the containers.

I'd like to suggest an addendum - smoke should work the way suggested, but foam should burst the container open instead due to the rapid build-up of matter, then continue acting as normal.