One of the main reasons for a medical malpractice claim is "Failure to Diagnose".

"WNL" is an accepted medical abbreviation for "Within Normal Limits", but sadly usually means "We Never Looked".

"We never looked" (or measured) doesn't cut it in 2017, esp. when wall thickness and bore gauges are $120. Personal injury attorneys are unlikely to spend the time and effort to develop a claim against a small time dealer with few assets however.

My only goal here is to get dealers to do a better job of "looking" before selling.