Press the ESC key to cancel this operation

This pop-up says, "Press the ESC key to cancel this operation." and then the button says "Cancel" 


Does the button neutralize the command or execute it? 


When I clicked the Cancel button this was the result. 


*Facepalm*

Perspective: Circle or Square

Consider that your perspective might not be everything. 

Ambigram: Good or Evil

Which do you see first?

Probably Evil. 
The reason is that the eye is typically drawn toward the object instead of the field. 
If the image were inverted you are likely to see Good first. 

Creative Constraints

In the usability book, Don't Make Me Think by Steve Krug, he talks about how constraints actually help creativity. (Ch 10, p145)

I wonder if this is what he meant. LOL.