Echoing previous posts, the THC found in cannabis is present in fatty cells for a considerable time after consumption. From an RAF point of view, they're now coming round to testing using hair samples. Meaning basically you're screwed, to be blunt (pun intended).
As for your opinion regarding BEagle lightening up Paddy. Might I suggest you ask around a few people on these forums regarding his biography. Might make for interesting reading compared to your 'wealth of experience.' Tw@t