This one has died in the proverbial, so, summing up, we have as the most popular:
elmo with "Fark, a brain cell....don't need that"
Mark_australia with "Tony searching for some Greenies to pick on"
and elmo again, with "I wonder if this will be exempt from the Mining tax"
And the winner is elmo's first one "Fark, a brain cell....don't need that"
Take it away elmo, and make sure the next photo doesn't offend Dungbeetle

Cheers