We have been very disappointed in the unprofessional and dangerous behavior that some of the local vessels have engaged in during the course of our operations. It is distressing to see the casual attitude that some local Captains take toward marine laws and safety, a matter we take very seriously. On numerous occasions during the past weeks, we have seen small local boats approach our ship in a careless manner, apparently not realizing the danger of their actions. The thrusters that are engaged during dynamic positioning operations present a serious threat to small vessels that come too close, which is why we request a safe working perimeter through the Notice to Mariners. We are seeking legal redress to prevent this from happening in the future in order to avail ourselves of every avenue available before someone is seriously hurt or worse.