Daniel Wirtz: Dog thinks terrace door is closed (YouTube)
“No, really, puppy: the door is actually open. You don’t have to stand outside. You can step right in. At 0:45, a human does what is hilariously necessary to persuade the dog.” — Neatorama
http://www.youtube.com/watch?v=udbMNZDQS48
Here is a list of books, including some free eBooks, by David Bruce:
https://davidbruceblog.wordpress.com/david-bruce-books/
Check out the rest of https://davidbruceblog.wordpress.com/