Safety of Pyro

In response to my concerns about the safety of using pyro in the home, an acknowledged writer on b&w processes indicated he thought it no more toxic than household bleach or exposing fingers to print developer. This came as a surprise as gallic acid is considered highly toxic. I would like to try pyro as I think from what I have seen published I would marginally prefer the look to Dixactol, a newer staining formulation which is possibly less toxic. I would be interested in other views on this. I would add I don't plan to drink it - I'm just concerned about spills drying to dust with an 18 month-old toddler around the house. Also, I would use pre-mixed PMK rather than mix it myself. What precautions do people take?

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