Harry Philo was a nationally known plaintiff’s lawyer and author of a number of legal publications including  the Lawyers Desk Reference. He practiced in Michigan for many years and died this year.  He wrote about hazards and the obligation to protect from injury.

His analysis included the concepts of  risk which refers to the degree of exposure to a hazard. For example, the risk of one car a day crossing railroad tracks compared to 1000 cars a day. Hazard refers to the potential for harm. Spilled water on the floor isn’t the same hazard as an unmarked vial of deadly poison. Danger refers to the unreasonable combination of risk and hazard.

Harry wrote that any risk of serious injury or death is always unreasonable if there are reasonable methods to minimize or prevent it which were not taken.

So, what should bge done about such situations? The first step is to eliminate the risk. If that isn’t possible, minimize the risk, as for example a guard on machine. If that isn’t an option one must warn and instruct about the risk.

It’s a test of reasonableness. What is reasonable? Anything that is technically and economically available which would eliminate, minimize the risk or warn about it. In the case of the design of a product:  “was it scientifically possible and economically feasible to design this product in a reasonably safe manner?”

What about warnings?  Most warnings are only disclaimers to prevent liability and are in fact not warnings to prevent injury.  They should be warnings to prevent injury.  An inadequate warning might  involve a situation where the manufacturer or person in control actuallyknew about the risk, but failed to warm about it in an adequate way.

A “caution” is a announcement that something can be safely done but only if it is done in a particular way guarding against injury. On the other hand, a “warning” would ad


To summarize, the basic principle Harry wrote was this:

“Any risk of injury or death is unreasonable or unacceptable if feasible and  reasonable means existed that would have eliminated it and if not guarded against it or if not warned about the risk.”

If you think about it, these principles apply in almost every tort case, even  malpractice.




  1. Hey Paul, hope you are well or well enough. Age is starting to chew at me. But I do continue to be engaged. I have been educating one of the lawyers in my office, about some of the wisdom that is out there, and which far too few people even know about these days. You came to mind. And Harry Philo. I sure wish that I still had my Lawyers Desk Reference.

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