Secret leprechauns?

I'd never heard of the secret leprechaun. But today, several of my sons' friends were apparently visited by a tiny leprechaun, who left footprints on their tables, turned their milk green, and dropped little chocolate coins.

Is this a Utah thing, maybe? Or is it more widespread?

At least I bought stuff for a green fruit salad and green eggs and ham. There's no leprechaun, but we did manage to get everyone wearing green. This counts as awesome, right? Right?

I really want to know: what do you do for St. Patrick's day? Have you ever heard of a secret leprechaun?
 

If I could knit, I would make a secret leprechaun. The one from here is adorable! Mine would look a tad less human and a lot more like tangled string at this point, but hey...