I'm sorry if you didn't see the funny side Carl, I certainly wasn't taking the p*ss out of you. The garage that did the head gasket have messed up big time and it is their responsibility. I don't know what your relationship is like with them but you have done the diagnosis and it is up to them to put it right or pay you to do it. Let them lose the sleep as it's not your problem.
Hope it all ends well,
Bryan.