One rang me up today so I answered the phone abruptly and told him to stop ringing me as have had silent phone calls for a week ..he shouted" I will send the police round to your house" down the phone so I shouted "send them then" and put the phone down..I then got another call 5 minutes later and shouted "scrub my number and don't bother ringing me you idiot"and hung up again...Thankfully its gone quiet now