I feel we are in danger of slopping the definition of garden path sentences over into areas where it doesn't belong. Things like my fave, 'British Left Waffles on Falklands' are not garden path sentences, just sentences that can be humorously, if sometimes torturously, misinterpreted. A garden path sentence is one that you think you are following quite nicely until you get toward the end and find it suddenly seems to mean nothing at all. This, as in the case of the horse raced past the barn, is generally because you have been given a perfectly reasonable and grammatical structure that just doesn't happen to fit the final sentence. Usually this is to be resolved by restructuring the sentence, a luxury not always available to deadline threatened headline writers.