stick with leash. when i see a lost leash i don't think of a lost dog. i think of a free dog. like when you see a crutch left in the alley or leaning on a tree it suggests someone was healed and walked away. 
i was thinking yesterday morning how fear makes people use dogs for protection and contort their natures when dogs in their nature create peace, they bring an aura of peace and love and win hearts everywhere they are. when i see a dog of peace i say yes please and thank you for walking with me.