Jacob/Guy

We've been trying to teach Marcus how to say "Jacob" (fyi--Marcus has problems pronouncing many words. He's only just started making 2-4 word sentences (the only four word so far is "I don't want to!). We are to hear back soon about him starting up speech therapy). Anyway, a long while ago Marcus started calling Jacob "Guy". ??? Where'd he come up with that you ask? I have no idea. We all thought it was kinda funny til it stuck. Now that Marcus is working on proper pronunciation, we're trying to get him to say Jacob's proper name. Here's how well it's going.....