Thanks guys! Good news on the shed roof felt though - it had clearly blown off and I found it a couple of doors down, which is a relief! I have updated the police accordingly.... And my neighbours can all laugh whilst I try and put some more up shortly!

As for the pot at the front, I don't think this would have been the usual scrap collectors because I spoke with them a while back when I was clearing out our house of all kinds of scrap, so I think they would know not to take it. Scrap collectors are generally useful, given the nearest dump is on the old kent road and a bit of a drive away!