Just when you though I was all empty with the funnies here I go again You bid for a place in the adsense square box and then you let in a typo make you look silly !
Some people DO bid on misspellings to lower the CPC. Sometimes it is deliberate, don't know about this particular ad, though. TomG.
This thread is has lightened my mood. You'd think that the CTR's of these ads would be very high because of curiousity alone. Very funny!