Like Chollie I could have sworn I'd seen or read news stories of off-duty "abuse of power" or misrepresentation by TSA personnel. I'm still pretty sure of it but a search comes up with lots of other misconduct both on and off duty like abuse, rape, theft, drug smuggling, human trafficking, etc., but not misrepresentation. The one case I think I remember was an agent who got in the middle of some public domestic or child abuse situation. As I recall he supposedly presented himself as a "Federal agent". As I recall he said he didn't get involved as an agent but as a concerned citizen. Supposedly it was going to be investigated but I don't recall any further news or mention of it and a search brings up nothing.