I understand that everyone here is trying to protect their bitcoin talk account, but I can tell you that nobody cares for your account because I don't think giving your phone to someone for a couple of minutes and the person will hack your account, no the person will not hack your account, I can use my self for instance, nobody knows what am doing with my cellphone people always think am chatting with someone or playing video game with my cell phone.
More importantly, is not good to share your cell phone with friends, especially the ones that contain your important details.
Lol what?
Nobody cares about our account?
Tell me something, there are people with more than one accounts (let's take the case of jamalaezaz as that was the recent I remember due to his apology thread). If someone takes his mobile ffs, he/she would easily be able to get into his personal world and would get all the details of his alt accounts he is currently handling or have abandoned. That's one thing.
However, those with single accounts like you (probably), me and everyone here would definitely not want our accounts to either be used or compromised and there are several things that one can add on their homescreen, like gambling websites where they gamble often, informative websites where they read a lot (like news sites), websites where they're learning something through online courses, etc. But nobody does that because if someone (even if your closed ones) know about it, where's the privacy here? Would you like to shout loud about what you've been doing in your life and keep things super transparent about yourself? Then it won't bother you, else you'll definitely not want to share your phone to anybody with all major things available on your home screen itself.