I just went and looked at my worm bin and all the worms were up on top! balled up in a corner. its pretty hot out today (100+ F) and i did just pile quite a bit of food in there, i'm afraid it might be thermal composting or something. i spread the bedding and food out a bit and left the main pile of worms alone, i'm sure they know what they need more than i do. my bin is wood , not plastic and in a pretty shaded area so i would think the temp wouldn't be too hot but it was feeling pretty warm. is this something they would do if it got too hot? will they be okay? should i pull them out and put them in some bedding inside for a couple day?