rust

From the submitter:

The frame of this truck was so rusted out that the owner stuck a 2X4 in there and screwed it into the rust using a bunch of keys as anchors...

Evidently you're not a grammarian though...

"Some say rust and electronics don't go together. Some say you must properly ground old electronics. I say that having a ungrounded, old, rusty 1300 RPM propeller near my head is better than being hot!"

Better you than me, buddy!