Exactly Lyneham.
We should teach our kids the dangers, and make them aware. Not simply tell them to stay away, thereby making it seem more exciting and more of a challenge.
Here is the scenario.
Mother tells 9yo son "dont go in that garden, there is a swimming pool"
son says "but mum, I can swim and all my mates are there"
mother says "dont care, you might fall in and drown, stay out"
son thinks... "but I can swim, I wont drown, she wont know if I sneak off"
and no, she probably wont, if she doesnt care that a 3yr old can wander freely...
Scenario 2
Mother to 9yo.
If you go next door but one, make sure your sister isnt following you. Keep the (so far non existant but should be) gate closed so she cant get out. And dont just go into the garden without asking the owner first if it is ok for you to be there, or unless you have been invited.