I had a relatively minor I incident that I believed warranted an ASR for the learning points involved. Flight Safety weren't that interested but my Fleet response was unexpected. I had narrowly avoided punishment apparently and was advised in colourful and expressive language not to be noticed again. I blew it off but on the very next flight the FO hand flew the departure and allowed speed to approach 260 below 5000. I intervened, and he corrected, however I was then preoccupied with wondering what bells just rang in an office somewhere. Sounds ridiculous and that is what I had said in the past to other "paranoid" colleagues. Thats what happens, my ability to function for the next 5 minutes was impared by what others have described as fear. I was surprised to be so easily effected in this way and particularly by a benign event as 260kts....at that point I fully understood the "fear factor".