Came back from a 2 week holiday to find a grubby old microfibre cloth (like a dishcloth/tea towel type thing) hanging out of my letterbox. Seems weird to me - innocent explanation would be that someone spotted it outside our house and poked it through our door thinking it was ours (it's not)... But that seems weird and unlikely to me. Worried it could have been a burglars trick to see if we were away, I.e if the rag was still there a couple of days later.
What do you think of this? Suspicious? Or am I being paranoid? What would you do?