4. Don'T Come Back This Way Again

The pitcher plant is a carnivorous plant that eats insects. An unfortunate insect walks in to the pitcher plant's flower. When it tries to reverse direction, it can't. Tiny spines on the petals' surface face downward, which forces the insect to move in one directiondown. Here's your chance not to go back. The shape below is made with one continuous line. Starting anywhere, can you complete the shape without lifting your pencil from the page? As you probably quessed, your path cannot cross over itself.