Battery Shut Off Switch

LOLOL Sorry man this is NOT TRUE. If you are switching something "hot" drawing CURRENT under LOAD it does not matter where in the line the switch is placed. The switch will still "eat" the contacts

Your reasoning has to do with if you SHORT something to ground then it sparks When connecting jumpers, you want to connect the ground last, BUT AWAY FROM THE BATTERY such as at the engine block. IT WILL SPARK if the jumper is hot and the target is low. The reason you want to connect away from the battery is THAT SPARK when connected will not trigger a possible battery explosion.......and it happens

I stand corrected. I also like the idea of a positive shut off because if a ground - well shorts to ground- no issues.
If a positive grounds- big issues. Thanks for the street version of edumacation en me!