If you send Valve's CEO multiple emails, he doesn't send cease and desists.

I am looking out the windows of my 10th floor office (the office is the entire 10th floor, if that wasn’t clear, as it needs to be large enough to contain all of my awesomeness). It appears that the hounds have been released, as well as the ninjas (with some of the smaller and more agile ninjas riding on hounds), but no cease and desist letters, so you’re good on that front.

Gabe

I’m aware that I have absolutely no proof that this actually happened - oddly enough I don’t consider Reddit a reliable news source - but all I know is that when I grow up, I want to be a CEO or supervillain (same thing these days) who can send out hound-riding ninjas just for fun. Definitely a cool guy.