Apologies if this has been said earlier (I cant seem to get page 1 of this topic) but :
Headsethair wrote "So - commercial helicopter pilots never do anything that could be considered stupid?" If you consider flying under a bridge stupid, read on------
If you'd been up and about early one Sunday morning a couple of weeks ago, you might just have seen a Twin Squirrel flying under a certain bridge on the River Thames - four times, I believe. (road deck raised, of course!) All done with the knowledge and (grudging) approval of the CAA.
And if you missed the event, watch out for "Thunderbirds", coming to a cinema near you in the not too distant future, for a pilots eye view.