Just stand back and look at it as if u wanted to break in an steel sumin how would you do it!
Like gates
If u got a 6ft fence put a trellis on top
Is your fence strong enough to with stand a kick in
Plat holly or sum thing just a thorny along your fence or wall
Locks why skimp on them when there keeping you prize possession/s safe
Bottom line make it as difficult as poss for your self to get in.
If the worst does happen get as many good pics up on as many social network sites as you can like, gumtree, free ads, face book, thl, etc. Im always about an if I see any lurcher, whip,