Well, after several tests, I can tell you, that the dongle in the up above presented dongle protector will survive without damage if somebody running against it, while it is connected to a USB port, since we changed the load balance point at the USB tip… And it will not damage the USB Port on the computer that much anymore as it would be without dongle protector, since it has larger place around the USB-Port now, filled up with plastic, which wasn´t there like this before. But of course, it cannot be said for sure, that the USB Port in computer will not be damaged at all, once somebody will run against it - just the chance, that the USB-Port gets damaged if somebody will run against a simple cable connector of a USB prolongation cable, or somebody by accident will catch the cable in any way, which in your way of solution is hanging down to your lunch box, is even higher than an impact on a connected dongle in dongle protector…
On this picture you can see, how close the dongle protector comes to the laptop and this provides much more stability in terms of accidential impacts to the dongle, than it would be without or with just a cable connector:
