I would like to see you get into the mindset that he is lucky you are being gracious enough to let him live there.
Yes, yes and YES!
The turkey. I'd like to box his ears. And then hit him with the remote. Jeez.
You were also asking if you should contact him when you arrive in England or during your trip? Put my vote in the absolutely not column. Not even to rub it in - you would be rubbing it in more if you don't contact him because you are having too swell of a time to think about him. Even better if his visa does not come through and he's still on that couch at home fondling the remote. Now that is something to smile about!
A little anger is natural (in fact, lots of anger) and can be used to propel you forward. I am in a bit of a rage phase which is probably not healthy. But a little anger is good; it helps you keep your distance.