What’s an opening paragraph for a story about a radioactive alligator that can shoot lasers out of his eyes, has super strength and electrocuted anything that touches it?

It was finally D-day. We were super excited to be visiting the 'R-Zoo' as it was called ('R' for Radioactive). The zoo was the only one of its kind, with its main attraction being its extremely fierce radioactive alligator. That is precisely where we were headed first. As soon as we entered the somewhat dimly lit cavern, we could hear a roar from the crowd, with a preceding crackling sound, something that resembled a burst of lightning and the sharp wham of something very heavy falling onto the ground. It was a huge banyan tree that was lying horizontally at the edge of the water. At first, we didn't notice anything much except the brown wooden log and the glistening water. It was only when the log started moving that we could make out what was moving it - a huge, menacing, scaly creature with jaws powerful enough to hurl the heavy tree out of the water, laser-like eyes glinting with anger at probably being disturbed out of its reverie, and a body that seemed to be emitting sparks at regular intervals, igniting the dry leaves that came in its way.

the answer is irony!