Poor Teddy. When he saw all the bigger kids going down the tall slide, he wanted to try it to! And he was perfectly okay... until he got to the top. Now there's only one way down and he's none too happy about it.
ALT; He couldn't help it. As soon as the fear set in, he whined and everything just sort of... came out. Already having been damp, as he refused to stop running about the park long enough to be changed, he manages to go a little too much, a little too fast, overfilling that adorable diaper. His bottom is soaked. His legs are soaked. There's piddle pouring down the slide.
He really hopes a grown up notices that he's trapped and comes to help, because he's too scared (and possibly embarrassed) to call out and ask for it himself.