I have heard many tales of camera straps coming loose and cameras and lenses being broken when they do.
I was in the strap aisle at a local camera store and met a woman who was there with her husband and two year old son. Their camera strap had come loose and dropped their camera to the cement. A $600. lens was shattered.
INCH OR ¼ INCH?
Check the strap on your camera and see if it has at least an inch of extra strap coming out from the connector. If it has less than an inch I would adjust it so it has more.
Using the strap that comes with the camera is okay but they generally are not padded and have rough edges that can bite into your neck after a while. There are many great straps you can buy as well as camera connection systems.
If you buy your camera at a camera store I would suggest buying a good strap along with it and having the person at the store install the strap for you.
Check you strap and see if it is good or needs adjusting.