from some of the equipment. and then they got to eventually taking this thing out which i'm sure was a heart-stopping task for the people involved. the way this thing can be explode said by dropping it. by having a pure frontal sort of impact or by having one of these electronic pieces of equipment set it off. eventually, after the operation, they did get it out. we have a picture of what it looked like ultimately. you can shy big this thing was. again, an unexploded cartridge sitting in someone's ahead. all of those actions needed to try to get that out safely. the patient is doing fine. they were able to get that out within 20 minutes or so they told us. just a remarkable round of events. >> it's not usual that you call the bomb squad into the operating room, right? they have this on tv knows. but it's interesting that the doctors actually did learn how to do this, right? in part of their schooling?