Dean, I'm continually amazed at how many people are frightened of pyro! There are MUCH more toxic chemicals used in household cleaning. If you follow the safety precautions outlined in the instructions (mix outdoors or under a 'ventilator'i.e. a range hood) and don't drink the 'A' solution, and don't soak your hands in the developer, you will be quite safe. Whatever you do, though, DO NOT mix amonia and bleach! The fumes will kill you in less than 30 seconds! There's no warning labels on either of those chemicals, is there?(posted 8865 days ago)