"Red and yella kill a fella," warned the guide.

An instructional guide warns that without "sufficient evidence for prosecution, the detainee will be released" and "may attempt to attack soldiers again."

The reptiles are fun to watch, but guides warn to keep your distance.

Farther along in the ship's bowels, another guide warned: "Watch it!

"If you photograph them," warned my guide, "they'll happily kill you."

There, the guide warns, "It will cost you and arm and a leg for a lump of toast."

"Gotta keep quiet for a bit, like the other end," their guide warned as they emerged again into the frigid night.

Be careful," the guide warned, "how you indulge in sarcasm.

A guide had warned me that services last four hours, with the congregation standing the entire time.

Besides, the guide would warn them of-- The light vanished.