IggyTheSmidge

No, it's an optical illusion - both shapes exist, but different groups of people tend to see one first instead of the other.

I see the rectangles initially, but after staring at the cross for a bit the circles appear:

Twinned with the Wil Wheaton school of watches:

Good call - not sure you can tag images in comments as NSFW (to get the auto-blur), but I've hidden it in spoiler tags.

(Potentially) [NSFW]

Tap for spoiler

Edit: This one's been floating around the net for long enough that I'd forgotten what the feathery chap in the back left was up to!

Hidden behind a spoiler for those who don't want to see an owl swallowing an entire rat(!)

D'you think we can get Ricardo Montalban to hypnotise one of the sportsball players?

Little Shop of Horrors and Beetlejuice.

How old were they? Because this (top left) may be the reason...

I'm just picturing one of those episodes of M*A*S*H where they leave Frank Burns in charge.

I remember reading an article in the early 90s where they opined that 'the thing that would really date TNG was the presence of a therapist on the ship'.

Mental health - a total 80s fad, right?

England - never been a line. The only thing I've ever had to wait for is for the bod manning the polling station to find my name on the list and hand me a voting slip. In and out in a couple of minutes.