In the descriptive sense, people speak of luck after events that they find to be fortunate or unfortunate, and maybe improbable. Therefore, cultural views of luck vary from perceiving luck as a matter of random chance to attributing to such explanations of faith or superstition.
Chirping can be due to misalignment of the drive belt, but could also be due to pulley misalignment, worn pulley bearings, worn belt ribs, contamination from oil, coolant, power steering fluid, brake cleaner, belt dressing, or other substances. Squealing is usually caused by slipping between the belt and the pulleys.
During a reverse sneeze, the dog will make rapid and long inspirations, stand still, and extend his head. A loud snorting sound is produced, which may make you think the dog has something caught in his nose. The most common cause of a reverse sneeze is irritation of the soft palate, which results in a spasm. This spasm narrows the airway and makes it temporarily more difficult for the dog to take in air.