Perhaps there is a connection, perhaps not. You lost 7 rats in 24 hours. He lost his rats over the course of weeks. You fed a Purina product. He fed a product that was formulated at a small mill that happens to have an affiliation of some sort with Purina. There simply has not been enough information provided here to conclude a cause/effect relationship.
I'm not "on the other side of the story." I have hundreds of ball pythons, boas, and carpet pythons that I have to worry about feeding day in and day out...but I'll do my best to relate to where you're coming from.It is also easy to say some one is over reacting when your on the other side of the story with no issues, not having to worry about how if all your breeder rats die how will you feed 20+adult ball pythons and an unknown number of hatchling at 2.50 a rat and still replace you 100 + 300 lost rats and time building you colony back.
Those examples of "risks," within the context of this conversation, are just silly.Yes a risk like handing a gun to a child is a risk. Driving drunk is a risk. Swimming in shark infested waters is a risk.
You're right about one thing...you have a responsibility to your animals to look out for their welfare. However, as I have already stated, there is limited evidence (at best) to suggest that any of Purina's product lines are contaminated...let alone all of them. In case you forgot, "Purina" didn't make the rodent chow that lord jackel fed his rats.Risks are something that once made aware of, people tend to go out of their way to avoid. Saying I don't want to knowingly feed my rats a possibly contaminated food and letting others that might also benefit from my loss know of the risk is not over reacting its called being aware of my responsibility's as a rat breeder and doing what I can to ensure the well being of animals I have taken in to my care.