Spider(s) and Secrets

What happens when everyone is keeping a secret that everyone else is secretly keeping too:

On film set, Crew Member A, quietly, to Crew Member B: I think there's a spider loose.

Crew Member B: [beat] **mimes big stomp on floor**  There.  Got him. **makes "shh" gesture and walks away**

5 hours later:

Crew Member C: Weren't there TWO spiders in that cage?

Crew Member D: Shhhh

C: Maybe he's hiding under the rock.

D: Uh-huh. Maybe.

50 minutes later:

Crew Member E, stopping as he walks by empty cage:  ....Isn't there supposed to be a spider in there?

Crew Member F: **shrugs and walks away**