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Yeah, I know the feeling. Usually I imagine Colin Goldie making very, very low Overtons from such pipes.
I like that thought. I wonder how Colin feels about it, must ask him one day.
Claus
I thought the same thing when I saw some concrete pipes on the side of the road at a construction site. Then I got thinking about not having the air to make a sound from them, and how I could hook up a compressor, but how would the holes be covered and uncovered? Oh, no holes! I’d just get a bunch of pipes and cut them to different lengths and…
then I realized that I had just invented the pipe organ.
well I figure you’d have to get your friends together, and you could all just sit on the holes at the right times and…
Alas, you have fallen victim to yet another tragic form of whistle induced mental disorder. As of yet, there is no known medication or alternative therapy that has been tested that is able to succesfuly cure or relieve symptoms of this disorder. Being unnamed at this time by the medical community, it has unofficially been deemed “tubupipularneurosis”.
I was diagnosed over 4 years ago while driving past a new housing development as they were installing the water lines. All I could see were vast groups of six holes on giant tubes, just waiting to be cut loose and be fitted to headjoints with mouthpieces and tuning slides…
Sorry, but you have long since joined the club of whistlers!!! 
Take care,
John
Funny that, but I had the opposite experience! I had the same sorts of thoughts that Cranberry did, but while looking at a pipe organ (specifically the one in the US Naval Academy chapel while I was at a wedding there a few weeks ago). It didn’t last long, though – my wife swatted me for being too whistle-obsessed!
Steven