How To: Lock the Dialer to Prevent Snooping When Letting Others Borrow Your Android
Lending someone your phone to make a call is always an awkward situation, as you closely monitor them to make sure they stick to a phone call rather than wandering off into private applications like your photo or messaging apps. You don't necessarily want to eavesdrop on their conversation, but trusting people with your phone is difficult, especially if you have some risqué or embarrassing pictures stored on it.
