If you have ever done a public display, You need this sign

LOL.That should do it.Great sign,I love it.

Wish I had thought of it! May reword it a little, but the concept is awesome.... There will be a version of the RC3R layout this year.

Gilly

What happened to "NO CHILD LEFT BEHIND"?  Someone is not following government edicts.  

 That's a good one. 

Ah, yes.  Yes!  Well said. 

Here is one I picked up a few decades ago.

Pretty funny. Only thing better would be two puppies (not housebroken).

This one was on display at the B and O roundhouse near their Thomas area:

J White

 Thanks for posting that one Larry...

I've been looking for that one for years...

The version I saw was for computers that ended in

"Put your hands in your pockets and watch the pretty blinking lights"

This was on the Fort Pitt modular layout in the White Hall of the April York meet. The sign is behind the white VIP limo in the Presidential motorcade.

I'm going to have to make a couple of those.

I like these a lot. One I remember- Children left behind will be taught to swear like pirates...Ahrrg!

Seems to me with the railroad workers reputation for "colorful language", any choice of the railroading job titles could be readily swapped for "pirates".

A local auto service had one something like-

Kids and cars. We encourage running ones are driven home ASAP.  

"its a joke son, a flag waver..I keep pitching um and you keep missin um"    

here 's my sign:

Here are a couple more signs you can use.  Tons more are available with a Google Image search for "unattended children".

There were quite a few out there on Google images with the "Expresso and a Free Puppy/Kitten" being the most prevalent. However, this is the one that should be used at model train displays:

Kids really love those high-end command-controlled locomotives with those high-end freight and passenger cars.

Not train-specific, but nevertheless in the same spirit...

Marion's Pie Shop in Chatham, MA has a sign outside the door:

"Well behaved children are welcome; all others will be baked into pies"

I love children. They're delicious.

Mack

I also like this one: If our dog doesn't like you, we probably won't either"

LOL