I am at the airport. I watch my stuff quite closely, but it only takes a second or two of someone else watching it closer for it to disappear. Fortunately, all my critical files, that no one else need be perusing, are on the SD card in my shirt pocket. When I am in my seat on the plane, I may stick it in the slot to get some serious work done, but once the plane lands and is taxiing to the gate, it gets unmounted and back in my pocket. Just to be safe.