Very often my cell phone is in my pocket. Sometimes back jeans pocket. Sometimes handy-dandy cell phone pocket of my Lands End coat. When the phone is set to make noise, it is also set to vibrate. Since the phone gets louder the longer it rings, sometimes the vibration begins before I hear anything. I usually jump out of my skin when the vibration starts and the phone is in my pocket.
This afternoon I was in an industrial area looking for a geocache in a space that happens to have a very small cemetery. I jumped out of my skin when my sister called me as I stood in the back corner of the cemetary verifying coordinates. She thought it was hilarious and would not stop laughing. I love my sister. And I found the cache while I was talking to her.