Why the most inexpensive tool on the PO can become the most expensive job on the rig. The job was supposed to take three hours. The tool string was made up. Pressure control was tested. The slickline unit was ready to run. Then downhole something got stuck. The crew tried to jar it free. Nothing. Another attempt. Still nothing. Now the job wasn't about the original intervention anymore. It was about retrieving equipment back. Hours later, you’re fishing for a tool strin