I checked our local walmart. They dont carry it. I walk to work and leave my house at 345am. I live in a VERY safe town but am not allowed to enter my workplace with a cell phone and they do have metal detectors you must pass through before entering so sneaking one in isnt an option. I feel pretty safe, and have been walking for 2 months with no issue but would like to feel a little more secure, since taking my cell isn't an option.