Additionally, positions may require some or all of the following abilities - to work around electrical currents and/or hazardous materials in a safe manner; sufficient strength and coordination for restraining and/or carrying the weight of adults and defending ones self from attack; to think and act quickly in emergencies; effectively deal with personal danger; operate a variety of shop and hand tools in which manipulative skills and hand-eye coordination are important for safety and/or productive operations; operate gasoline, electric or diesel-power equipment and machinery and vehicles involving manipulation of multiple controls; operate construction equipment and automobile vehicles; driving and travel; and/or exerting up to 20 pounds frequently, 50 pounds occasionally, of force to move objects. In some positions, work may be conducted in the outdoors or in a noisy, crowded area, with exposure to uncomfortable physical conditions or adverse environmental or weather conditions such as heat, cold, extreme temperatures, rain, snow, sleet, wetness, odors and/or smoke, noise, oils hot oil, inks, asphalt, traffic hazards, vehicle fumes, strong and/or toxic chemicals, solvents, grease, paint, electrical currents, dust and pollen, blood borne pathogens, biohazards noxious plants, wildlife, and animals.