Last winter, I bought a guardian light (along with my new Smart Alec), but I never had much cause to use it. Now I have to walk to and from the train in the dark and so the light is pretty important. But I've discovered that the thing is just about impossible to turn on. It needs to be turned so hard that my hands aren't strong enough to turn it on. Has anyone else had this problem? Is my guardian light broken? Am I just a wimp?