Google knows too much
There is a bowling alley nearby and I have googled it a few times. I have received Google Now notifications about it before but nothing for the last week or two. Hours ago my aunt said, in person, we should all go bowling. I didn't touch my phone since and did no google searches or anything and I have a notification saying Time to [bowling alley nearby]. I have no idea how Google could have known I was going bowling unless the mic was on somehow but I haven't gotten a call or used the mic for any reason at all today. NSA has my phone tapped!!!