I have just purchased a Remington 870. Came with no sling. Is one needed / useful for home defense? What would it be used for? I read some bloke suggesting it would be good to prevent Mr. Bad pulling my weopon from my grip. Hmmm --- "Tug_of_war' is no game I want to play with my Shotgun. Another suggestion I read : a sling gves me some where safe to sling my weopon ..*AT HAND * if I need to grab my knife or his testicles or some cord to tie-up the unconsious intruder. What do people think?