I wish i could answer the phone with "yea?" or "what?" or "speak" like in movies but I always look like an arse.

I also like to end a phone call after an important point by hanging up without saying goodbye, like sephex mentioned, but they always call back like "so uh is that it? or did our connection cut off?" and im like "no smurf off i was being dramatic" and hang up again and then they call back like "so were you being dramatic again or is our service just terrible today" and this goes on for a little while