I’ve unearthed another missing scene that was in the original Dutch cartoon but was left out of the U.S. version. It comes from episode nine: “Digging A Well”.
When digging the new well, Ollie taps on the wall with his hammer and the tapping sound is strangely answered by the flushing of a toilet. A little door swings open to reveal a mole sitting on a miniature pink toilet reading a newspaper. He has a few choice words for Ollie before slamming the door.
Maybe this was considered a little too crass for American kids at the time, or perhaps the American crew couldn’t come up with an innocent enough one-liner to accompany it.