"Dammed taxi cab"--a 12-year-old boy wrote these words in the margins of a questionnaire, and within this paper they will serve as a point of departure for the discussion of the use of questionnaires as a way to voice children's experiences. The overall aim of this paper is to enable understanding of and discuss the use of questionnaires as a way to voice children's experiences. An analysis in accordance with a life-world approach has provided the lens through which to explore messages that can occur in questionnaires. The key research questions that will be explored in an attempt to answer the overall aim are: (i) how can unanswered questions and notes in the margins of a questionnaire be understood? and (ii) why is a questionnaire not always completed, according to the intention of its creators? To develop an understanding of this we analysed a number of questionnaires with unanswered questions and notes in the margins using a life-world approach. During the analysis two themes emerged: silent messages and messages being silenced. Finally, we discuss the legitimacy of questionnaires in childhood research and possible implications for practice when using this method to give voice to children's experiences. (Contains 5 figures.)