A few weeks ago we came pretty close to a container ship under way in Boston Harbor. The way the wind
was blowing I needed to get pretty close to him to avoid a big rock in the middle of the channel on the next tack. The wind
was all sorts of awkward. I was aiming right at his midsection. The idea was to get pretty close then tack away. At about 75 yards, approaching at about 3knots closing speed, and still plenty of room IMHO, he starts the 5 horn routine. I immediately tack to make him happy, (go go gadget self tacking job) so that only 4 horns actually happened. I made the gesture of why are you freaking out but he was too big to make out anyone on the bridge.