BAD APPLE: Yes, He Can!
It is a group member who defies the group rules.
The main danger of a bad apple is spoiling the barrel—i.e., her dysfunctional behavior can be contagious, and other group members start behaving similarly.
Bad behavior may be contagious because, in many instances, it's easier and more appealing. For instance, it's easier to work three hours a day when you want than eight from nine to five, as required. Attracting attention by doing something disrespectful might be a way to increase status, which, for some, is appealing.
{GROUND RULES, PROCRASTINATION, LACK OF MOTIVATION, PERMIES, WEED-OUT, THE DICHOTOMY, CLIQUE}