I'm concerned, my lil dude went into the heater vent. I had a cover on it and felt as if it was fail proof, upset i was mistaken. 3 days ago, i could not find him for like 5mins, very unusual. If climbing on me and my computer desk and he choose to be dare devil, rarely he will crawl down or jump down, look around a lil a go under my ferret cage and chill out in the corner or, he will come back toward me and crawl right into my hand. I go to get him at his usual spot for this behavior and he is...