Get a dog, it could be a small one, but make sure that it is a noisy one. Also, motion sensor activated flood lights, as well as wireless alert system for less than $20. Organize your neighbors and do a neighborhood watch.
Generally, you want to avoid confrontation (and use that pump action shotgun) so look for any way to deter the intruders. But by all means, you must have a way to defend yourself and your family so do get the shotgun first.
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