Jun, a statistical database programmer, is trying to write a large statistical program needed by his company. Programmers in this company are encouraged to write their own work and to publish their algorithms in professional journals. After months of tedious programming, Jun has found himself stuck on several parts of the program. His manager (Jerry), not recognising the complexity of the problem, wants the job completed in the next few days. Not knowing how to solve the problems, Jun remembers that a co-worker had given him source listings from his current work and from an earlier version of a commercial software package developed by another company. On studying these programs, he sees two areas of code which could be directly incorporated into his own program. He uses segments of code from both his co-worker and the commercial software but does not tell Jerry or mention it in the documentation. He completes the project and turns it in a day ahead of time. What professional ethical dilemmas are Jun and Jerry dealing with here? (e.g. Should we allow or sanction Jun's behaviour? Is there a public interest question raised by this scenario? What actions do everyone involved need to take to ensure that this kind of situation does not occur again?)