The cat came back.

[Catherine]

There is more to the story. They now know how BooBoo made it across the border and how he ended up in an animal shelter.

http://news.google.ca/news/url?sr=1&ct2=...t=2&at=dt0

The people who found BooBoo in the first place never bothered  to have him checked for a microchip.
This has been enough of an adventure for any cat. I hope he settles down and stays home.