I was in the bath, and my mum called, so DH brought the phone up to me (as you do)
I was chatting to her when I heard knocking on the bathroom wall, coming from next door. it happened a couple of times then stopped. Then I heard a knock at the door and DH talking to someone - it was my neighbour wanting me to stop talking in the bathroom as he could "hear her murmering but can't hear clearly what she is saying"