This paper focuses on microethical issues concerning interactions in which the process of informed consent occurs. It draws on research analysing the biographies and future hopes of 15- to 17-year-old girls and boys participating in targeted youth/educational programmes in the Helsinki area. The ethical challenge explored here is how to negotiate with the young interviewees on expanding the research setting towards a longitudinal and cross-generational approach, which also means expanding the data produced on their already well-reported lives. The paper highlights the power relations between adult researcher and young research participant, the contextual nature of gaining informed consent, and the conflict involved in trying to avoid hounding an over-surveilled group while still tracking their whereabouts and revisiting them for a follow-up interview.