A Fish Tale A Texas oil tycoon is in northern Canada for a vacation and has booked a day of fishing on the Great Slave Lake. The guide says they will start out on the lake at sun up, two am. As they start out the guide says, ""Have you ever seen such a long day?"" The Texan lights a cigar and says, ""Sonny, the sun never sets on Texas, it's God's country"" As they head out across The Great Slave, the tenth largest in the world, the guide asks, ""Have you ever fished on a lake a big as this?"" Th…