This is an important reminder to all of us using battery-powered devices: there is just a tiny bit of electronics separating us from a fire. There is a non-zero

This is an important reminder to all of us using battery-powered devices: there is just a tiny bit of electronics separating us from a fire. There is a non-zero risk this electronics can malfunction. It does happen en-masse like with Samsung Galaxy Note 7, and it happens in individual cases like with Samsung Galaxy A21. It is important to be always aware of this possibility, because the consequences can be fatal. For that reason, unless it's necessary, I prefer not to keep my phone in my pocket. I know I will probably be fine, but if there is a safe option, I prefer to reduce the risk.