Scenario: Dave bought a power lawn mower manufactured by Ace, Inc. The mower was equipped with a removable plastic safety barrier to minimize the risk of injury from the mower's blades.
Dave removed the safety barrier believing that it was unnecessary.
Dave asked his 16-year old son, Zak, to mow the lawn. Zak‘s foot touched the mower blade because the safety barrier was removed; Zak was injured.
Dave wants to sue Ace, on behalf of his minor son, Zak, under strict product liability.
Under what specific product liability claims would you advise Dave to sue Ace and why?