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LKSF
Pennine Hillbilly
That's what I initially said, like you I missed one important detail.
I think we'll get there by process of elimination
That's how our dog works when he wants to find us. He visits every place where he thinks we might be (because we've been there before) and ticks them off the list at high speed until he eventually finds us. If I hide somewhere new he can't find me. You would think being a dog he'd have some extra strong sense (smell) which he would use outside, but he's either too daft or was never taught to use it. I can understand how maybe it wouldn't work in the house as our scent will be everywhere.