<P> It has been indicated that it is considered rude to Apparate directly into a private area, such as a home . Dumbledore states in Half - Blood Prince that it would be "quite as rude as kicking down the front door". For this reason, and for reasons of security, many homes have Anti-Apparition spells protecting them from uninvited intrusions . The accepted way to travel to a home is to Apparate to a nearby location and continue to the final destination on foot . Apparition is considered unreliable over long distances, and even experienced users of the technique sometimes prefer other means of transport, such as broomsticks . Rowling has stated that Apparating over long distances depends on the skill of the wizard, and "Cross-continental Apparition would almost certainly result in severe injury or death ." Indeed, even the prodigiously skilled Lord Voldemort elects to fly back to England after visiting the far - flung Nurmengard . </P> <P> For reasons of security, the grounds and buildings of Hogwarts are protected by ancient Anti-Apparition and Anti-Disapparition spells, which prevent humans from Apparating on the school grounds . There is also a spell that prevents individuals from Disapparating, which Dumbledore places on the Death Eaters captured at the Ministry in Order of the Phoenix; a sister spell, which allows one to Apparate into a location but prevents them from Disapparating out of it, is cast by the Death Eaters in Hogsmeade in concordance with the Caterwauling Charm . Dumbledore is the only person who can both Apparate and Disapparate from the school grounds, since he is the headmaster . </P> <P> A witch or wizard can use Side - Along Apparition to take others with them during Apparition . Dumbledore successfully transports Harry this way several times in Half - Blood Prince, and notably, Harry's first non-lesson attempt at the skill is the Side - Along Apparition with the weakened Dumbledore when they return from the seaside cave . </P> <P> In the Order of the Phoenix film, Death Eaters and Order members Apparate and Disapparate in clouds of smoke . Death Eaters appear and disappear in black smoke, Order members in white . In the film, both sides also appear to be able to "half - apparate" in which their bodies were made out of smoke, giving them the ability to fly . Both times Fred and George apparated and disapparated, they did it with a pop as in the books . </P>

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