The market has a lot of good companies but is also a playpen for pump-and-dump scammers.

FORBES: O-T-C Trading for Experienced Investors

Four centuries of Portuguese influence have thus produced more than a playpen for the debauchees who arrive on the jetfoils from Hong Kong.

CNN: ASIANOW - TIME Asia | Visions of China: Macau

Mostly the puppies amble around a large playpen that looks like a football field, pouncing on squeaky toys or tugging on rope.

CNN: Puppy Bowl Sunday: Survival of the cutest

The regional boards overseeing the river levees, once a patronage playpen, have been restructured and professionalised.

ECONOMIST: New Orleans five years after Katrina

Google is a giant playpen.

FORBES: Digital Rules

What's more, on average, 26 babies under age 2 are injured every day in a crib, bassinet or playpen in the U.S., according to a study in the journal Pediatrics last month.

WSJ: When a Cuddly Crib Puts the Baby in Danger

Is it a metaphor, or is it just one wacky playpen?

FORBES: Why Dying Author Iain M. Banks Has My Undying Gratitude