Disconnect battery when parked?

Dana67Dart said

Now what if your kill switch contacts start getting corroded or loose and you get a weak connection and while cranking, you build up excessive heat and it starts a fire.

Every time you flip a switch or disconnect a disconnect is one time less it can be connected or disconnected in the future.

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But at least you are present to deal with the situation not on say a weekend get away. Yes there is always possibility of something happening but again just maybe cutting down on possible scenarios might help. As far as every time you switch it on and off it wears down kinda like your brakes wear a little every time you use em but I'm glad they're there. Just saying.