Can anyone give me an example from your experience when somebody has failed to apply the standards of practice and code of ethics while providing care to a client or patient.

Prime example of ignoring a clients right to refuse:
During my preceptorship, one of my patients went on a hunger strike. He was in a delirium and ETOH withdrawal, and was N/C, however when this happened his delerium was starting to abate and he was no longer showing the S/S of withdrawal. All he wanted to was to be with his wife of 50 years, who had moved into an assisted living facility the previous year. He had no other family. His doctor ordered an NG tube to be put in. While this wasn't in my scope of practice to perform, he consulted me on it since he was in my care. I flat out told the doctor I didn't agree with it and asked him if he'd discussed the procedure with the patient, which he hadn't. I said I wouldn't even process the order until he did. Needless to say he was pretty put off that a student was standing up to him:P. The patient refused the procedure once it was explained to him and flatly told the doctor he would take it out himself if they put it in.
The doctor wrote the order for the RN on my team to put the NG tube in. Even she refused. I was off for 2 days following, and when I returned, the patient was in restraints, and so doped up on Haldol and Ativan I could scarcely believe it, and the NG tube was in... needless to say I was furious...