I am reminded of the old movie “Telefon”.
The promotional summary:
https://www.imdb.com/title/tt0076804/
Soviet sleeper agents in the US are activated by telephone calls which recite poetry to them:
“The woods are lovely dark and deep...but I have promises to keep....”
Oh oh—I did it this time....
:-)
“Blessent mon cœur d’une langueur monotone.”
And miles to go before I sleep....
Well, at least we know who to blame. Lol.