Was going into BOS some years ago, lots of vectoring around the airfield, eventually asked if there was a problem as we were fast approaching commit time. Reply came back that there was shipping in the channel so this was delaying action. Thin layer of 8/8 Sc at ~1,000’, clear above.
After the vectors, we broke cloud at around 900’ for 04R to see a huge ship passing by the threshold, which were definitely on a collision course for. ATC instructed a GA, repositioned for another go. I don’t think I could have arranged that if I tried, we had a good laugh about it...