I worked in customer service for awhile so I try to be polite when I get phone calls, but a lot of times, I do END them with "F*ck off" and hang up in their face. Of course, I do see what the phone call is about first...incase it is a nurse from the hospital and a family member is lying there, dying.
The thing that really aggravates me about "those type of calls" (whether it's a bill collector, a solicitor, whatever) is when they try to pretend to be your spouse's friend. Don't try to be sneaky with me! Like I said, I've been on the other side of that when I worked in a call center, so I understand sometimes you have to be sneaky to get people to pay their bills. My hubby's bank account manager called to speak to him...just a friendly call that she makes every month to make sure he is happy with his account and is there anything else she can help him with...problem is, she called and said "May I speak to *John*?" as opposed to using "Mr. Smith", which to me was unprofessional from the get-go. My husband doesn't have women calling our house asking to speak with him...his friends and family members call his mobile. So she started off on the wrong foot because I knew it wasn't just an old friend calling to chat. When I told her that he wasn't in and could I take a message, she said "Yes, can you tell him to call *Carol*?" and that was it. When my hubby got in, he didn't have a clue who *Carol* was and only figured out 2 days later (when she called again and he answered) that it was his account manager. Now if I was the jealous type or untrusting, that could have been a BAD situation for my hubby...lol.