Last winter I discarded the sweepings from my open fire under the trees in my garden. I use a mix of wood and coal to run my fire. Anyway this has never been an issue with my other dogs but today Layla carried what looked like a lump of coal (possibly charcoal?) and proceeded to try to eat it. I stopped her and I know that they make charcoal bonios and things but I wasn't really sure whether or not I should be worried by this? Has anyone else encountered this or do you all dispose of your fire sweepings in the bin rather than under the trees in your garden?