Have you ever seen a ghost before?

I have seen a couple in my life so far. One, a shadow person when a friend and i were walking home from the movies years back. It was midnight and I saw the shadow person under a street light walking towards us, I follow it with my eyes and when I turn my head as it passes, its gone, it took one step into the road and withered away. Second, I was going into my kitchen for some munchies, I open my door take one steo into the kitchen and before I can turn the light on, I see straight ahead of me, a woman in a gown and a head dress. Only two that i really do believe I saw because I know that I did. Haha