A safety nailing device of the present invention includes a main body, an actuator, a striking plate and a disengaging means. A method of treating lesions such as foot ulcers is also disclosed, that includes bathing the lesion in antibiotic mist and contacting it with oxygen gas. The mobile device can determine that a place or region is a significant location upon determining that, with sufficient certainty, the mobile device has stayed at the place or region for a sufficient amount of time. Such accessories may also be obtained from remote sources as packages, and then applied locally to avatars. A plurality of baffles are positioned between the flanges, along the slot.