deterring cats

[pourmeanotherglass]

a neighbours cat keeps pooing on a bare patch of my lawn. Anyone know any good ways to deter them? - plants they dont like the smell of? chemicals that are safe to use with small children?

lemon rind - they don't like that much - there is a plant you can buy that gives off a lemon scent - don't know what its called though sorry.
water pistol - doesn't hurt the cat, but it does get them annoyed that when they come into your garden they get squirted - eventually they learn that your garden = mad woman with water pistol and they won't bother!
xx

can buy electric devices ( no not electrocution ) that emit a noise that cats don't like but is fine for dogs and wildlife.
I am considering buyin one - about £20, as cats treat my lettuce patch as a litter tray.