I work at the Co of the pet as a groomer and one of my coworkers all of a sudden started just not doing her job properly. She's late every day, she goes on breaks right before her clients are supposed to show up (not against policy, but its rude since A. Your customers expect you and B. Now we have to drop what we're doing to deal with your dog). Her dogs all look a mess, and seems to think that she's next in line to be manager, so when the current manager talks to her she just shrugs it off.