That have been laying around the house for years and then burn them in a firepit.
Deciding to get rid of them, you throw them in the firepit, where they get soaked for several months with rain.
Then, you light a fire to burn some trash, but forgot you put them in there.
I'm not really worried, just curious.
The flames should get to them in several minutes.
Reason being, a new neighbor moved in next store last week. Still haven't met em'.
Yet.