“Customer harassment” is the harassment of employees by clients and customers in brief and is almost synonymous with pernicious complaints. In recent years, it has become obvious that about 70% of clerks in the distribution industry have suffered harassment from customers, such as violence and abusive language. Why does customer harassment occur? What are psychological and social factors involved in the growing number of pernicious complaints? If employees are attacked by pernicious complainers, how should they deal with the complainers? This paper gave an overview of the various topics surrounding complaints based on psychological findings and previous studies in related fields. Furthermore, my opinions on how the organization should respond to customer harassment were described from the viewpoint of employment protection.

In the information society, it is easy for customers to transmit information. Many companies connect customer opinions to product development and service improvement. However, at the turning point of the Toshiba-complainer-incident, the Internet became one of the risks for companies. In this paper, I analyze the structure of past net troubles from the viewpoint of interest and ambiguity. Recently, a hoax of lack of toilet paper has spread. I also introduce how to deal with attacks by malicious customers.

In this paper, we introduce a remote assistance robot for librarians in a university library. It is an important task for librarians to deal with users at the help desk and other situations where they deal with visitors. Librarians are highly specialized and often perform their duties away from the reception desk at the bookshelves, stacks, and offices. The reception desk may be unmanned, which may lead to lost opportunities from the users' perspective. In the paper, we introduce a remote reception system using an android robot that is currently in operation at the university library. Through the evaluation of the system through long-term operation experiments, we show the usability, acceptability, and effectiveness of the system.

Up to now, customer harassments were mainly focused on sexual harassments from the customers. In recent years, with the development of the information industry, it has become a problem that information service workers (including customer service/sales business workers) are being harassed by an unspecified number of customers. This paper overviewed the customer brains who are highly prone to customer harassment from three perspectives: 1. Lifestyles such as sleep, exercise, and diet; 2. When the functions of the eight brain addresses are lowered or immature; 3. Diseases with brain function problems such as depression and dementia, developmental disorders such as ADHD and autism spectrum disorders. In Addition, it described the challenges needed to prevent customer harassment.

In late years, the text mining attracts attention in the medical research field. This technique is used as a qualitative investigation to understand a clinical phenomenon in the nursing science. In addition, the text mining is used for grasping a study trend by information to be provided from the bibliographic database. In this article, we analyzed the medical literature of text mining that utilized Ichushi-Web using technique of the text mining. Furthermore, we elaborate it about future prospects of the text mining.