Subliminal Message in Ads ??

About a month ago I was eating with a friend and we had Burger King - the bag it came in was sitting on the table. I was not focussed on anything and suddenly realized that I had seen a "happy face".... but then there was NO happy face anywhere.... ??? Then it hit me that I had "seen" a happy face in the design of the bag that the food came in...  I realized that there seems to be a hat or a head, bushy eye brows, eyes, nose, smile - ect. -- Maybe even a lil tongue slurp...  You decide what you think....