Not on mobile, but on laptop. I have a female friend who was new to the city in those days and lived alone in a flat. I met her in college. We often used to meet, chat a lot and then go on weekends due to our good friendship. Once I reached to meet her. She had made pakodas, etc., we ate and started talking. In talk, she told that her laptop has become defective, and asked me where to fix the laptop. Since I had experience of computer software, I started to find out the disease of the laptop itself. After investigation, I suggested that it would be better if the software is formatted and re-inserted into the computer. She obeyed me. Before formatting the laptop's hard disk, we both sat together and started backing up the necessary files. Finally I started to open the recycle bin and what I saw there were very personal things: There were a lot of nude and semi-nude pictures of her, in which she took photos while trying out some new underwear. It was not right to look in front of her...
Senior IAS Officer Vijay Aggarwal emphasised in his book "How to become IAS" that common sense can be bulit by experience and interaction with society elements. This website will share articles like that will subconsciously create common sense in you. Read and Create you awareness