If you want pretty much ANYTHING to be ready when you need it, it must be maintained.
If the day comes (God forbid) that you NEED it to defend someone you love or care about and it fails because of poor maintenance habits, well, let's just say that's not the way I would prefer to learn a lesson.
I clean ANY weapon after use and then maintain them and keep them free of dust and foreign matter at all times and check them frequently - probably once a week for each and every article I own. Sometimes, if I'm busy and don't get to it for a week or two, I'm not usually worried about it because it's a time consuming kind of thing but I know that if the time comes they are needed - they are ready - which IS what it's all about.
If you have oiled them and keep them properly stored, it's not like they will collect a lot of sand and mud anyway but just messing with them two or 3 times a month is just a good habit to be in.
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