Laugh, but it sank a warship!
heh heh heh
The Hunley was the first thought that crossed my mind when I saw the picture.
Re your #9 - My immediate thought exactly!
The good old CSS HUNLEY; may she rest in peace!
But let's remember, folks; she did manage to sink one US Warship, even though it turned out to be a suicide mission for the Rebel Submariners.
And Jihhadists don't mind embarking on suicide missions on purpose!
Just before Pearl Harbor the Japs tried to sink a US freighter before it got back to Pearl, having just been released from captivity in a Jap harbor by a US task force.
The Japs were utterly furious over losing their American hostages, and vowed revenge.
A couple of mini-subs, essentially long range crew directed torpedoes, followed the ships all the way back, but the Destroyer kept them at bay until they were nearly at Hawaii, when one of them made a desperate attack, whereupon it was sunk by gunfire from the Destroyer.
This incident was denied by the Navy for years, until just recently they found the sub on the bottom just where the Crew said they sunk it, with a 3" hole through the conning tower. It had two live torps stacked one on top of the other with noses still protruding from the bow.
It looked to be about the same size as this Iranian tub, too.