I'm a firm believer in Nessie, Bigfoot, and possibly even Thunderbirds (large undiscovered birds), but ghosts, zombies, demons, etc. are too unlikely for me to believe in. Why would ghosts haunt people? They are bored? I mean, really? That's like believing in magic. it's fun to say it's true, but there is no proof at all that anything like it could be true. Bigfoot is easily possible, and so is Nessie, and discrediting them is closing your mind to a serious possibility. Narwals exist! Zebras exist! Whales exist! Those animals could be considered strange. Oh, and the Giant Squid. Admit it, you can't say they are fake. You just can't.