Originally Posted by
Cragrat
just a little tip bus instead of loads of spikes etc try carpet grippe rod,it tears ye finger ends etc like a bastard and is easier to fit and remove as required
http://www.deteracat.co.uk/cat_repellent_spikes.htm
Cat spikes and are legal so you'll be covered by old bill should the cumbag get hurt, rather than your homemade device
More expensive but less likely to attract suspicion when fitted.
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Can the strips be used as a human intruder / burglar deterrent?
Yes, these cat deterrents can be fitted to walls, fences, gates and drainpipes etc which will make it extremely difficult for intruders to get a hold on, but they are a visual deterrent rather than physical."