Errrrrr?

Driving through town with my kids a couple of weeks ago, my 11 year-old breaks the backseat bickering, by urgently addressing me. "Mama."

"What?" I answer, fearing he will report that someone has lost an eye and the fun has abruptly ended.

But, no, that was not it. "Why do hospital signs always have errrr on them?"

This question baffles me. "Errrr? What are you talking about?"

"Like on that billboard, there," he points. "It says errrr underneath the name of the hospital."

I look, trying to keep one eye on the road while I study the lettering on the large billboard. Then I ask the only question I can think of. "Do you mean the capital letters E-R?"

"Yes, ma'am," he answers, making the phonetic pronunciation again. "Errr."

"E-R, honey. Emergency Room." I give him a shrug and an inquisitive look in the rearview mirror.

He sheepishly says, "Errrrrr."