I always try to remember to bring my cell when playing with my kid in the park, on a walk, etc. There are too many reasons not to bring it. Off hand:
- Medical Emergency: yours or another's - stranger may need it to summon help or older kids could use it for same if trained to call 911.
- Wife needs to make plans or wants me back home in a rush.
- I need a ride: injured myself, equipment breakdown and can't get us back safely.
- Kid needs a ride: pee/poop/puke, exhaustion, boo boo, atomic meltdown, etc.
- Need to order delivery when you realize you aren't feeling up to cooking.
- Forgot something and need the cavalry (Mom).
Then again, I don't typically use my phone for work and not many people have the number. I wouldn't recommend being a chatty Kathy when you need to watch your kids. I see soccer moms blabbering on while their kids run out of sight... just want to smack the phone off their cheek. <img src="/images/graemlins/mad.gif" alt="" />