Strangely, I've always wanted to get pulled down under a sinking ship. Often when I've torpedoed a merchant and it's starting to go under, I'll take a risk and do a flank dive under it, with the background hope that it will collapse on me and suck me down. Something about tumbling down to like 400m, then ballasting out and flanking back up to the surface, is really appealing. I guess I just don't get sunk often enough.
