AntiPractices: AntiPatterns for XP practices

When you introduce extreme programming (XP) to your project, the team gets fresh energy and high efficiency. However, sustaining the good condition becomes difficult when you are attacked by its side effects. We call these XP side effects "AntiPractices", just as AntiPatterns come from Patterns. "Turning all the knobs up to 10" is the XP way, but AntiPractices show bad symptoms of the overdrive. In this experience report, we identify AntiPractices discovered from our projects. We add prescriptions so that XPers can share the countermeasures.