How many times have you found yourself in a situation where you have to borrow your friend's or spouse's phone? And you really need to talk to someone, but you don't want to risk the possibility of your friend sending you a message or calling you while you're in the bathroom or walking around the house?

You don't want to be forced to explain why you're out of reach and be the one that gets the blame, right?

Well, if that's you, then you should try out Wear Phone Lock, a completely free app that lets you lock your phone using your Android Wear smartwatch. No more missed calls and messages!

How does it work?

First, install the Wear Phone Lock app on your Android smartwatch. Then, launch the app and start using it. When you're finished using the app, simply end the lock by pressing the button in the notification bar. That's it!

Now, whenever you want to send a message or call to your friend, you can simply open the Wear Phone Lock app, select your friend's contact, and then start talking to him. When you're done talking, just end the call as you normally would.