Eyes of July Has a Secret

From this point on, the remaining Secret ads have cameos of UFOs as reoccurring... well, not characters, but more like reoccurring vehicles.

Another foreigner who doesn't know the secret!

There's some potential cow nudity in the remaining Not-Far Side ads, so avert your eyes if you're easily offended.  Very very easily offended.

Nudist Ranch

Next up is one of the more perplexing punchlines that probably loses something in the translation.

"Did you fish already?"
"Yes, once... in a stream."

"It's days like these we don't notice how quickly the time goes!"

"Are you tired?"
"No."
"Depressed?"
"No."
"Influenza?""No."
"What then?"
"I'm back from vacation."