While on the NW corner of the ACR this weekend a boater called into the USCG that he was assisting a sinking vessel. The captain remained calm, advised the persons to don PFD's and stay with the vessel. As it continued to submerged he had them abandon and was able to bring them on his vessel without incident. This all was about 1.5 south of MI. The kicker? The conditions were snotty, East wind @ 10-15 with occasionally higher gusts and choppy, confused seas at 2'+. SeaTow was able to salvage the vessel - a 16'-18' runabout! Who in their right mind would take that boat into those conditions?? I just don't get people sometimes.