i've seen my fair share of ships sail off into the distance myself... it is frustrating when they're doing near 20 knots and you know there's no hope of catching them even with a quick bowshot...
however i did one day come accross a lone passenger liner doing a hefty speed. i got a "Schiff gesichte!" and went to my bridge to see what i'd suddenly run accross and there was this 4 funnel jobby swishing accross my bow with almost a 90° angle...
well i quickly set all four bow tubes up opened caps and promptly converted her to christianity!
took a while to reload but then took one more to finish her. twas a damn fine day that was