Layered Obstacle Home Defense
Count the obstacles between you and the threat, then add layers so racking a shotgun is never the plan
- Difficulty
- Easy
- Time to result
- ~weeks to results
- Steps
- 5
- Confidence
- 70%
Glover frames home defense as concentric layers, borrowing the logic of a border wall, where the absence of obstacles lets threats pour through open terrain. You start by asking how many obstacles stand between you and a potential intruder, then build them out: locked doors with deeply recessed bolts, chains, bars, storm or cage doors, and even a thorny bush at the base of a window. On top of the physical layers sits technical security, motion sensors and alarms tethered to reliable comms and backup power, so you learn of a risk before it enters. Only after all of that comes the last-ditch layer of armed defense, and even then Glover favors defending a pre-planned position over offensively sweeping the house. If you are racking a shotgun once someone is already inside, you have already made several mistakes.
Origin
Extracted from Modern Wisdom episode 656, where Mike Glover draws on Fieldcraft Survival personal-security courses and his own Vivint-plus-Starlink basement setup to lay out physical, then technical, then last-resort layers.
Core principles
- 01The first rule of physical security is obstacles, gates, and fences
- 02Without a wall, threats pour porously through open terrain
- 03Preemptive layers beat last-minute reactions every time
- 04Technical security warns you of risk before it reaches your door
- 05Defending in place beats hunting the threat when you have loved ones to protect
How to run it
- 1
Count the obstacles
Assess how many barriers currently sit between you and a potential threat, and treat gaps as open terrain a threat will exploit.
- 2
Harden the entry points
Add locks, deeply recessed bolts, chains, bars, storm doors, and cage doors so each door is a real barrier, not a token one.
Pro tip A solid oak or reinforced front door buys time and complicates any forced entry.
- 3
Use the environment
Place natural obstacles like thorny bushes beneath ground-floor windows to deny easy approach.
- 4
Add technical security
Wire infrared sensors and an alarm to alert you by phone, with battery or generator backup and off-grid comms so it survives a power cut.
Pro tip Tether alerts to a resilient link like Starlink so notifications survive a grid outage.
- 5
Pre-plan the fallback
Decide in advance to move family into a safe room and defend a chosen threshold rather than sweeping the house to find the threat.
Watch out Offensively clearing your own home invites an ambush, especially when you have children to protect.
In the wild
A woman in an all-women personal-security course asked whether racking a shotgun deters an intruder. Glover pointed out that if you are racking it, the gun should already have been loaded with a round chambered in a semi-automatic, and if someone is already in your home you have skipped every earlier layer. The rack question reveals that the real work, obstacles and early warning, was never done.
→ Reframes the last-moment tactic as evidence of missing upstream layers rather than a solution.
Working from his basement studio, Glover relies on a Vivint system tied to infrared sensors that text his phone the instant something trips them, backed by Starlink and a generator so it survives a power loss. The alert reaches him before the risk reaches the house, giving him time to move his kids to safety and defend a threshold.
→ Early warning converts a surprise home invasion into a managed, pre-planned defense.
Common mistakes
Planning for the last moment only
Fixating on the final armed confrontation ignores every cheaper, safer layer that would stop a threat earlier.
Sweeping the house offensively
Hunting an intruder room by room exposes you to ambush, whereas defending a safe position with family behind you is far stronger.
Relying on an unloaded gun to bluff
If your plan is to rack a shotgun for deterrence, the threat is already inside and your earlier layers failed.
Is it for you?
Best for
Homeowners and families who want a calm, systematic security plan rather than fear-driven paranoia.
Not ideal for
Someone looking only for which gun to buy, ignoring everything upstream of the confrontation.
From the transcript
“the first rule of physical security is obstacles and gates and fences, etc. So I always think, well, how many obstacles are between me and…”
“if you're racking a shotgun when somebody's already in your home, you've already made several mistakes.”
“why would I offensively try to go downstairs and find the threat... when I could put my kids in a safe room, back against the…”
From the episode
Green Beret Teaches You How to Survive Any Situation - Mike Glover - #656
Mike Glover