Can we agree on a safe word to cut the crap?
Something like "stop #$@&%*! buggering me and cancel the service",
or "#$@&%*! cancel the #$@&%*! contract",
or "why the #$@&%*! #$@&%*! don't you #$@&%*! listen and #$@&%*! confirm my #$@&%*!#$@&%*!#$@&%*! request".
The retention agent would stop retaining everybodies time, the customer could release some steam to hold off the next heart attack, and the customer rating would improve to #$@&%*! horrible.