Nails Scratching Chalkboard Sound Effect misophonia symptoms triggersThe sound of fingernails scraping down a chalkboard is unpleasant to many people But this is a very mild example of what people with misophonia experience when exposed to a trigger sound Nails Scratching Chalkboard Sound Effect use palm sanderA palm sander is one of those tools I bought thinking I would use all the time but the fact is I NEVER use it It vibrates like a jackhammer it s difficult to change the sandpaper and it actually scratches the wood of my DIY furniture projects What a dreadful little tool avaudiovisualaids blogspot 2010 10 av aids in teaching htmlOct 26 2010 DISPLAY BOARDS CHALK BOARD DEFINITION A chalkboard or blackboard is a reusable writing surface on which text or drawings are made with chalk or other erasable markers Blackboards were originally made of smooth thin sheets of black or dark grey slate stone Modern versions are often green or brown and are thus sometimes called a green