Whistleblowing is recognized as an important function in promoting scientific integrity, and there is a recognized need to protect whistleblowers. There is not much information available in the literature about scientific whistleblowing. Because it appears that frequently scientific misconduct is uncovered by a whistleblower, it is useful to obtain more information about the activity. This paper is about whistleblowing from the perspective of the person blowing the whistle. Information about a few selected cases of whistleblowing is presented in an attempt (...) to augment the experiential aspect of the activity. (shrink)