Only encounter I ever had uw with a seal was long ago in Monterrey Bay, but over 20 years later I still remember it, it left such a strong impression!
A shadow came in from my right so fast I had no time to react, a part of my mind was screaming "shark!". Suddenly a seal "kissed" my mask, spun on his tail, and was gone just as fast as he/she came!
WOW!!!! My mind was doing somersaults it was such a rush, but my poor heart was still stuck on "shark!"
I realized that day in a way I never had before, just how poorly we really are adapted for their element, compared with the hunters in the sea around us. Glad he was playing with me and not being aggressive!