When I saw this thread, I was reminded of a toy we had collectively in kinderguarten. Being the 50's it was that thick heavy rubber, a firetruck driven by a pig. (Jeeze, I hope there isn't a single serviving copy of that toy!) Well, we used to call it fart fart, and all the kids used to push it back and forth going fart fart fart... . Is this thread creep? Well, I don't know... just a thought.
Cheersmdears, Larry