It's not that. It's that you enjoyed a lot of the shit talking and piss taking in the last thread, light hearted humor while knowing full well that the problems have to be fixed and the stress and worry should be on the builder and tuner and not yourself. But we can see it's got you and a few members quite worried.
It should have been sorted before it was given back to you, but humans do have moments of lapsed judgment and sometimes moments of complete stupidity, especially when it comes to money and time spent.
All I can say is is that yes the leak must be found ASAP. Could be a number of things or a multitude. Whether that may be hoses, cores, gaskets etc.
Just sit back and let them find it.