Some horror stories are based on real events. For example, some haunted house stories might be inspired by old buildings with a history of tragedies. However, a lot of them are just made - up to scare people.
Sure. There is a story about a haunted house. People who entered at night would hear strange noises, like someone dragging chains. One man was brave enough to go in, and he saw a shadowy figure on the stairs. He ran out as fast as he could, and ever since then, no one dares to go near that house again.
Sure. There was once a little bird that was afraid to fly. One day, it saw its mother flying so gracefully and decided to give it a try. It flapped its wings hard and finally took off. It realized that fear was just in its mind.
I haven't had the chance to hear about a 'dulcimer horror story'. However, if such a story exists, it might play on the idea of the dulcimer as an object that has been forgotten or lost in time. The horror could stem from the discovery of the dulcimer and the secrets it holds. For instance, it could be that the dulcimer was used to communicate with the dead in the past, and when it's found again, it starts to draw in the spirits of the netherworld, causing chaos and fear for those around it.
I haven't come across the 'Amsterdam Glory Horror Story'. It might be a relatively unknown tale that is specific to certain groups in Amsterdam or those interested in local horror lore.
I'm sorry, but I haven't heard of a 'Hollister Horror Story'. It might be something that is more of a local or personal account that hasn't reached a wider audience. There could be all sorts of things that could be considered a horror story in relation to Hollister, like problems with returns, long queues at the checkout, or issues with the sizing of their clothes, but I haven't had any reports of such things.