This fun Dork Detector lets you take a picture of anyone who is acting like a dork and the facial recognition feature will tag them as a dork so you can share the photo with them or anyone else. After all, a picture is worth a thousand words.
Note. this app was previously called dumbass detector but Apple thought that was to offensive so now it is just Dork Cam.
There is also a website http://dorkdetector.com
And if you really need a dumbass detector checkout