Getting the council to take them away would have cost 27 quid, which M was prepared to pay. I wasn't prepared to have him pay it though, that's a stupid amount of money to waste. I thought I could maybe break it up small and send it away in the dustbin a bit at a time. But first, I thought I'd try an experiment and see how long it would sit outside the house without being taken away by passing locals.
Well, I don't know how long it took, but I do know it was less than 12 hours. Saves me some effort and someone's got a nice bed project - the head and foot sections are really still quite sturdy so it could become something useful again. Although it may have been nicked for firewood for all I know. Still, no longer my problem and someone obviously felt it was a gain.
I'll do more regular checks if I put anything else out to narrow down the timescale.