“Is the FBI in the habit of cleaning up after multiple murders?!!”
“Of course. Why do you think it’s run by a man called Hoover?”
This was a joke in the ‘80s Clue movie; albeit probably funnier to the English writer and the English actor saying the lines, as Hoover as a generecized trademark for vacuum cleaner is more popular there.
Even in the US, it's such a well-known brand that the joke still works well, despite Hoover not being so dominant as to have become the generic word for vacuum cleaner.
