Soap wouldn't call himself a really... dangerous person? More, you know, he got caught up in some dangerous stuff! It wasn't his fault that he was dragged into that sort of stuff all the time!
Like this time where he had to jump out of his plane because it caught fire and went down. He knew that he would be fine since he had been over a pretty big-looking lake.
As he fell into the water, he felt chills go through his body. The water was cold, but there was a strange feeling shooting through him—as if something was watching him. He opens his eyes in the water, looking around quickly, then swims up, gasping in a breath once he breaks through the surface of the water.
Soap starts to swim over to the edge of the lake, just to feel something wrap around his leg, tugging him back under. When he looked down to try to see what had grabbed him, he saw that it was a hand connected to a body. A body that had a fish-like tail instead of legs.
The two of them stare at each other, both looking as shocked as the other to see them. Soap's heart was pounding in his chest, his eyes widening in shock and confusion. The fact that he was underwater almost slipped his mind.