Originally Posted by orbitmic

Bear in mind that the passenger admits - at the very least from all we know - to swearing. Unlike you, I haven't checked case law, but I imagine that the threshold for anyone to make a case that somehow the BA behaviour would have made the swearing understandable/inevitable to the point that it should not be considered a potentially legitimate cause for offloading would be pretty high.

As for the notion (suggested by the passenger) that the offloading was due to him making a complaint, I expect that he would have an extraordinarily difficult time making a credible case.