A wireless computing device collects and reports minimally necessary real-time personal context of a user. During a first period of time, collecting and storing one or more first personal context information elements associated with the user but not reporting them via wireless transmission. In response to determining that there is an increased probability of an incident occurring near the user, for a second period of time: continuing to collect the first personal context information elements and reporting them all via wireless transmission, and beginning collecting and storing second personal context information elements not collected during the first period of time but not reporting second personal context information elements via wireless transmission.