ppeat and it may be working - I've squirted round the fences, sheds etc and so far little Sally Whiskers hasn't made a reappearance.
(of course, she could be trapped under a shed, unable to cross the Essential Oils Barrier
OR
She could be tending her 15 babies that she has just given birth to, and not have time to sit and glare at me through the kitchen door.
(With my luck, it's the second one . . .
)