I leave it behind deliberately all the time. Even at work sometimes. Fifteen hours phone-free is such a luxury.
^^ This.
I leave my phone behind when i go out cycling as well (I know a lot take them). I've crashed a couple of times but nothing too serious so I'm managed to limp back home without issue. I've known life before being reliant on mobile phones / internet on the go so sometimes its nice to know that you're not going to have interruptions / distractions when you're doing something you want to do.