Not something that has pissed me off, just something that annoys me. And I haven't had a moan for a while so why not....
Overly informal/friendly customer service operatives / websites / or businesses in general.
I got an email last week from my someone in a customer service department for a global company whose email started "Hi Homie, it was great talking to you today" and ended by saying 'have an EPIC rest of the week' They actually wrote EPIC in caps. What happened to Dear sir? Or Dear Mr Homie at least. Wouldn't have been so bad if they had actually resolved my complaint.
My local train station has a recorded announcement that starts "Hi there! " and then goes on to inform of engineering works and rail replacement bus services. Don't be all pally then give me loads of bad news.
Also I really hate all those websites that try to be cute when displaying a 404 page not found error. "ooops! you seem to have taken a wrong turn, are you lost?" said the cute picture of a koala bear apparently lost in the Arctic. No I'm not lost, your link didn't work. Stop trying to be funny.
There might be more important things to be annoyed by but these are the things annoying me this week.