A couple of weeks ago our large Salix babylonica decided to dump an eight-foot long by one-foot dia chunk of rotten wood on the lawn. For safety's sake we had to put the garden out-of-bounds for a while until the experts had had a look at the thing. They recommended pollarding to reduce the weight, remove any deadwood and reduce the "sail".
Yesterday their crew turned up to do the deed...
That's a serious bit of trimming, eh?