When we were house hunting I cut my toe on a piece of re-mesh for laying the foundation of sidewalks. I went to get a tetnus shot and the doc asked why I needed one urgently.

I told him being an idiot I wore open toed shoes to a ocnstruction area and stubbed my toe on rusty re-mesh and it broke skin.

He asked what re-mesh was, which wasn't that odd because I am sure it doesn't ring bells if you didn't toil the days at Lowe's but he is a farm boy from Kansas so I thought he might know. So I said "You know that wire metal that is down before they pour concrete for sidewalks." Crickets chirping. So then I added "it is kind of like rebar." More silence. Finally, I said "My last tetnus was likely in middle school, I am now 25 and it was rusty metal so I think it is just best?"