This happened last year too. We have an abundance of 'leaf eating' caterpillars (Gypsy Moth) here, and it's the time of year when they all hatch. For some very disturbing reason, Rudy loves them. I mean, he LOVES them. He calls them his 'buddies', and he is very concerned about how much they love him, and if they are feeling ok. I couldn't make this weirdness up. Here he is spending time with his buddies. And yes, he does cry every night when he has to leave them outside and come in to bed. Can't he find a human friend??