Tangential quadrilateral all of whose sides are tangent to a single conic section has three diagonals that meet at a point. From a tangential quadrilateral, one can form a hexagon with two 180° angles, by placing two new vertices at two opposite points of tangency; all six of the sides of this hexagon lie on lines tangent to the inscribed circle, so its diagonals meet at a point. But two of these diagonals are the same as the diagonals of the tangential quadrilateral, and the third diagonal of the hexagon is the line through two opposite points of tangency. Repeating this same
Snakes on a Plane landing, the plane makes it to the terminal. The passengers leave the plane and antivenom is given to those who need it. Just as Flynn and Sean are about to disembark the plane, a final snake jumps out and bites Sean in the chest. Flynn draws his gun and shoots the snake, and paramedics rush to Sean, who is unharmed due to his wearing a ballistic vest. As a token of gratitude, Sean later takes Flynn to Bali and teaches him how to surf. The story is credited to David Dalessandro, a University of Pittsburgh administrator and first-time Hollywood writer.