...he began to shrink!
however, his clothing didn't shrink with him.
Joe instantly felt the lightheadedness happening again.
He managed to sit down, and saw that his hands looked slightly smaller. His pants somehow or other looked slightly looser on him, as did his shirt.
His feet seemed to knock about in his shoes a bit.
He looked at his hand and gasped as he saw it get gradually smaller. Then he felt his whole body gradually get smaller. "OMG." He said. "What on earth?! I-I'm shrinking!"
Joe had never expected himself to shrink! Especially not in the park, where someone could see him.
He quickly decided to hurry back to his home before his shrinkiness got too far. So, he took off running, his clothes flapping a bit in the wind.
He just hoped nobody would find him...