User blog comment:Princess Kitty/It's CAPTION CONTEST Time! Let's go a new one!/@comment-26531060-20130310030058/@comment-7233548-20130310031945

It's Dave's voice! Dr. Zomboss steals Dave's voice that Dave can't speak gibberish(example in plants vs. zombies in game 1-5 that is dave's voice) or english and Dave will never tell Zomboss's weaknesses to homeowner. Dave became MUTE!