One of the most disrespectful experiences I've had while shopping occurred at a busy clothing store. As I was patiently waiting to try on items in the fitting room area, another customer barged past the line and shoved their way into the next available room. When I politely stated I was next, they rudely scoffed and remarked that they "didn't have all day." Their selfish entitled behavior and lack of regard for others was really appalling.