On the third hand, my husband is now receiving treatment for a tendon injury (commonly referred to as "tennis elbow") that he received from the deadman switch on our snowblower.
Should we sue the manufacturer for designing the deadman switch (a safety feature intended to keep customers from cutting their fingers off) in such a way that it produces injury? If we disable the switch to avoid further stress injury, and he gets injured subsequently because the machine doesn't act as expected, should the company be immune from legal consequence?
Regarding the planes with the 30 year old design problems, is it reasonable to keep a plane in service without continuing to evaluate its suitability according to current engineering knowledge?
Complicated stuff....