Yes, that can be a real safety problem. When I use it while running I only look at the screen when it warns me by vibrating. Vibration means zombies are nearby.

Yes, that can be a real safety problem. When I use it while running I only look at the screen when it warns me by vibrating. Vibration means zombies are nearby. Sometimes I also use it while walking, in this case I feel safe looking at the screen even in the center of Lisbon which is a very busy city.