There seems to be a lot of camera shake in the picture, do you know if the photographer in the middle of the frame was using a flash? If the flash triggered for a fraction of a second shorter than your exposure then it would appear in a different place than the shaky photo places the camera. Also the guy at the back has moved, I wonder did he pop a photo while passing the guy with the tripod?
If it aint that then its definitely a lizard slipping back into the fourth dimension to collect his dole.