The Changing Names of Joren

So, last week when Grandma was at our house, she kept asking Joren what his name was and he said, "Pickle."
Now, for some reason when we ask him, he says, "Spiderman." The funny thing is, that he answers to that. Last night when we were looking at houses with the realtor, he called Joren spiderman to get his attention and Joren totally stopped fighting with Brenner and turn to Mike like he was actually going to listen to him.