Apart from external security such as surround the house grey man style with vicous plants, I think booby traps are likely to backfire, especially with my family
First line perimeter security could be barbed or razor wire, high fencing, broken glass set into concrete etc, but in some locations that is likely to ATTRACT attention rather than deter it. Some scumbags will see the security measures and wonder what it is protecting. So where possible you may wish to consider GREEN security IE surround your place with vicous plants. they are self maintaining, low profile, frequently better than mand made and dont attract attention.
Natural Protection/Defensive Planting
From
http://preppersuk.freeforums.org/
Using naturally vicious plants to protect your garden perimeter is one of the best low maintenance long term projects you can adopt as a prepper, even apartment dwellers can train thorny plants around the edge of the balcony if you have a balcony of course.
A barrier of prickly hedge may be all the protection you need around your property. Here are some suggestions for plants to use.
o Creeping Juniper Juniperis horizontalis 'Wiltonii' - Also known as 'Blue Rug' because it has long branches and its prostrate shape forms a flattened blue carpet. It has a thorny stem and foliage.
o Blue Spruce Picea pungens 'Globosa' - Rigid branches, irregular dense blue, spiky needles. Height 1-1.25m x 75cm - 1 m. Slow growing. Moist rich soil.
o Common Holly Ilex agulfolium - Large evergreen shrub, dark green spiked leaves. Large red berries on female plants only. Any well drained soil. Plant with garden compost and bone-meal.
o Giant Rhubarb Gunnera manicata - Giant rhubarb-like leaves on erect stems, abrasive foliage. Can grow up to 2.5m high. Plant by water-side for effect.
o Golden Bamboo Phyllostachys aurea - Very graceful, forming thick clumps of up to 3.5m high. Less invasive than other bamboos. Hardy. Young shoots in spring.
o Chinese Jujube Zizyphus sativa - Medium sized tree with very spiny pendulous branches. Leaves glossy bright green. Bears clusters of small yellow flowers.
o Firethorn Pyracantha 'Orange Glow' - Flowers white in June, with bright orange-red berries. Thorny stem. Height 10-15ft. Suitable for north or east-facing wall or as impenetrable hedging.
o Shrub Rose Rosa 'Frau Dagmar Hastrup' - Excellent ground cover, pale pink flowers, very thorny stem. May to September. Plant with garden compost and bone-meal.
o Pencil Christmas Tree Picea abias 'Cupressina' - Medium-sized tree of columnar habit, with ascending spiky branches. Attractive form with dense growth. Avoid dry chalky soils.
o Juniper Juniperus x media 'Old Gold' - Evergreen. Golden-tipped foliage. Prickly foliage. Height 2ft. Spread 6ft. Low growing. Excellent ground cover.
o Purple Berberis Berberis thunbergil 'Atropurpurea' - Rich purple foliage. Thorny stem. Medium-sized deciduous. Any soil sunny position.
o Mountain Pine Pinus mugo 'Mughus' - A very hardy, large shrub or small tree, with long sharp needles, of dense, bushy habit. Leaves in pairs, 3 - 4cm long, rigid and curved, dark green, cone.
o Blue Pine Picea pungens 'Hoopsii' - Small to medium-sized tree, spiky needled stem, densely conical habit, with vividly glaucous blue leaves. Likes moist, rich soil.
o Oleaster Elaeagnus angustifolia - Small deciduous tree, about 4.5 to 6 m (15 to 20 feet) high. Smooth, dark brown branches that often bear spines and narrow, light green leaves that are silvery on the undersides. The flowers are small, greenish, fragrant, and silvery-scaled on the outside, as are the edible, olive-shaped, yellowish fruits, which are sweet but mealy. Hardy, wind resistant, tolerant of poor, dry sites, and thus useful in windbreak hedges.
o Blackthorn Prunus spinosa - Also called Sloe; spiny shrub. Usually grows less than 3.6 metres (12 feet) tall and has numerous, small leaves. Its dense growth makes it suitable for hedges. White flowers. Bluish-black fruit is used to flavour sloe gin.
In addition, the following thorny plants can also be considered:
Aralia, Chaenomeles, Colletia, Crataegus (including hawthorn/may), Hippophae (sea buckthorn), Maclura, Mahonia, Oplopanax, Osmanthus, Poncirus, Rhamnus, Rosa (climbing & shrub roses), Rubus (bramble), Smilax, Prickly ash(Zanthoxylum).
Although they will take some time to grow in the end you will have a very tough self repairing vicious perimeter defence
Narrative is by NR, plant list from a crime prevention leaflet I had laying around for years.