"[as the team prepares to leave, Miller comes stomping in] Everybody stay exactly where you are! The party's over. Somebody stepped on the cake! [opens his case] Exhibit A: a clockwork fuse. Elementary and archaic, but they work. Only this one doesn't work, you know why? The clock's okay, but the contact arm's been broken off. This clock could tick away until Christmas, and it wouldn't set off a firecracker! Exhibit B: Exhibit B is missing! All my slow-burning fuses are gone, disappeared, vanished! Exhibit C: my time pencils. Seventy-five grains of fulminate of mercury in every one of them, enough to blow off my hand. And very unstable, very delicate. [He smacks the one in his hand against the bundle of the rest, then violently crumples the whole mess together, and throws them in a corner] Which means there is a traitor in this room."
January 1, 1970
https://en.wikiquote.org/wiki/The_Guns_of_Navarone_(film)