Nightcrawler is one of the X-Men, who has the ability to teleport himself just about anywhere. He's also a cat, who likes teleporting of the fun of it, in this video from Kaipotainment (previously at Neatorama).
The moral of the story is: lets hope cats never acquire the mutant powers of the X-Men. They'll just use them for their own selfish purposes. -Thanks, Kaipo!