While my son wouldn't try to unlock my phone without asking ,I know a lot of kids who try to unlock their parent's phones. In that situation I'm good with the haptic feedback. It's only mildly annoying with the watch, but it'll sure let me know if my phone is on the table and one of my friends tries to unlock it to mess with it. (Like the time I unlocked my friend's phone and changed autocorrect to type the word "nose" every time they typed their son's name. So I got a text that said "Would [my son] like to come over and play with nose. No not nose, nose. Nose. What did you do to my phone?"AHHH! I just tried it and it works! I would prefer not to get the haptic feedback and notification on the watch, but IT WORKS!!!