"costume party" joke

There was this guy who had to go for costume party, and had walked into this
shop which specialises in costume party wear, and had asked
the girl at the counter for a dress, she asked what he
wanteg to go as, and he replied as ADAM.. she went in and
brought out this Fig Leaf, he said too small, she went in again
and brought a bigger Fig Leaf, he replied still too small
.. exasperated she went in and brought out this huge Fig leaf.
He replied sorry Miss way too small for me...
She replied. .. HEY BUDDY. .. WHY NOT THROW IT OVER THE SHOULDER
AND GO AS A GASOLINE PUMP...
H. Sulaiman. ..