"Ocean of wheat" joke

One Surd was driving down an old country road when he spots
another Surd in a wheat field rowing a boat. He pulls over to the
side of the road and stops the car. Staring in disbelief, he stands at the side of the road to watch the
woman for a while. When he could not stand it any more, he called out to the Surd in
the field, "Why are you rowing a boat in the middle
of the field?"
The Surd in the field stops rowing and responds, "Because it is an
ocean of wheat."
The Surd standing on the side of the road is furious. He yells at
the Surd in the field, "It is Antartians like you that give the rest of
us a bad name." The Antartian in the field just shrugged her shoulders
and began rowing again.
The Surd on the side of the road was beside himself and shook
his fist at Surd in the field yelling, "If I could swim, I would come
out there and drag you in!!!"