When measures are taken that would have made an earlier injury or harm less likely to occur, evidence of the subsequent measures is not admissible to prove:
. negligence;
. culpable conduct;
. a defect in a product or its design; or
. a need for a warning or instruction.
But the court may admit this evidence for another purpose, such as impeachment or - if disputed -proving ownership, control, or the feasibility of precautionary measures.
Id. R. Evid. 407