In todays busy world its hard to keep your nose out of our smart phones. I have been really trying my hardest to wait to be in a secure place before checking and replying to emails and text, or making phone calls like when I get into my car and have locked the doors.
Locally there has been a few instances where purses and wallets have been snatched inside a grocery store from the victims cart while they are shopping. Its hard to pick out a watermelon while holding on to your purse. So I have started to use the child safety belt in the cart to lock up my purse. That way if someone is trying to run away with my purse they are going to at least have to work a bit for it.
The best defense is to be aware.