Idioms can outlive their origins. People who never interact(ed) with a real SAK will pick up the meaning by osmosis. After all, I’ve never handled a petard, bu

Idioms can outlive their origins. People who never interact(ed) with a real SAK will pick up the meaning by osmosis. After all, I’ve never handled a petard, but I like to deploy the phrase “hoist on his own petard”.