Jason Bateman and Charlize Theron Sometimes, eyes just can't help but wander, can they?

And when they do, we're there to catch them at it.

Welcome to the world of boob browsing.

Rankings of those who participate include the obvious, the most obvious and the trying-to-not-be obvious varieties.

There's no confined arena for this activity to take place, either.

More often than not, however, participants are spied taking a peek at someone else's chest area while in a social setting.

While this makes it hard to award individual prizes everytime a peek occurs, it means the sneak spectrum is rather large.

As Jason Bateman, pictured here checking out Charlize Theron's rack, has discovered.

But don't diddle-daddle around any longer.

Watch those eyes heading south in our gallery of boob browsers below.