A method for collecting and storing sensor data (56, 64) of a hearing system (10) comprises: receiving the sensor data (56, 64) of at least one sensor (20, 32, 34) of a hearing device (12) of the hearing system (10), wherein the hearing device (12) is worn by a user; detecting a situation (72) of interest by classifying at least a part of the sensor data (56, 64) with a classifier (61) implemented in the hearing system (10); collecting the sensor data (56, 64), when the hearing system (10) is in a situation (72) of interest; and sending the collected sensor data (76) to a storage system (54) in data communication with the hearing system (10).