Eventually, the chickens were able to drive a wedge between Farmer Bob and Lulu.
"OK, one more time and it's off to bed for the both of you... 'Hey, Bob. Think there are any bears in this old cave?'... 'I dunno, Jim. Let's take a look.'"
The Arnolds feign death until the Wagners, sensing the sudden awkwardness, are compelled to leave.