Scorpio Tankers president Robert Bugbee is never at a loss for props.

At Scorpio’s recent investor-day presentation, he announced he had a copy of Morgan Stanley’s new research report on his company. Then he tossed a roll of toilet paper into the audience to laughs all around.

But what has been happening in recent weeks between the giant investment bank and shipping’s hottest tanker company is not such a laughing matter.

Considering