I can't believe. I used a speed boat to run over a manatee.
OMG. Why did you run over the manatee?
I saw a manatee. After I saw it I didn't see it anymore.
Even though it happened really fast you should be more careful to avoid hitting animals. It is wrong and cruel to kill animals.
I could have stopped but I just wanted to see what happens.
Then you should have, it is wrong to have hurt the manatee just for curiosity. It felt pain after you struck him.