Recently, Pete has reached the point of altering the routines he
has mastered to create jokes. For instance, if we ask him a language
question to which he knows the answer, he will often replace part or
all of the answer with "ka-BEEP." So if we ask him the color
of a purple car, he'll say "Purpaka-BEEP" and laugh. And
after learning how to steer one of his cars along the sidewalk when we
push him, he now sometimes steers it suddenly into the grass to shake
things up, again with much laughter.