Little Amy asked her mum if she could take the dog for a walk.
No, Amy as she is on heat.
What's that? Asked Amy.
Go see dad in the garage then. (Avoiding the explanation).
Dad....mum said to ask you if I could take the dog for a walk.
Ok, Amy but bring her here first.
Dad then took a rag soaked in petrol and wiped the rear end of the dog.
There you go, Amy...safe now.
Amy goes and comes back shortly but without the dog.
Mum asks...where's the dog?
Amy replied...it ran out of petrol halfway and another dog is pushing her home.