The New Zealand Defense Force has released thousands of files of UFO sightings. The files conclude that there are normal, explainable explanations for UFO's. For example, The New Zealand Defense Force's UFO; investigators took a look at the 1978 video of a UFO sighting and; concluded that it was either the image of Venus or of light waves. See the video and see for yourself how much sense that explanation makes.
New Zealand has also released reports of alien sightings by eye-witnesses, whom tell of aliens with big shoe sizes, and tell other bizarre stories. The emphasis put on these stories is to say, in so many words, these are unbelievable tales, like it's an joke, ya'll. You are meant to chuckle.