I met a guy at a seminar one time, who had an interesting job. It was to lob poultry carcasses of various sizes into jet engines to determine a balance between cost and effectiveness in preventing the kind of engine failure that happened with US Airways Flight 1549.
Maybe it was an Urban Legend, but he said his Canadian counterparts were having far different results. Turns out they were using FROZEN chickens and turkeys.
Well its cold in Canada!