Two Englishmen are walking through the woods with a large Salmon under each arm when they met two Irishmen, Michael and Donald.
“Hey there’s some wonderful salmon, where did you get them?” says Michael.
“Don’t tell anyone,” replied the Englishmen, “but we poached them out of the river.”
“How did you do that?” asked Donald.
“Well, Fred here dangles over the bridge, I hang on to his legs, and when the salmon leap out of the water on their way upstream, he just catches them.”
“We’ll try that Michael me boy.” says Donald.
They get to the bridge and Donald hangs Michael over the edge of the bridge by his legs.
After about twenty minutes Michael screams…
“Quick pull me up, pull me up!”
“Have you got a salmon?” asks Donald.
“No,” replies Michael “but there’s a train coming.”
Image used under a Collective Commons License from: https://commons.wikimedia.org/wiki/File:Pink_salmon_FWS.jpg