Holes! Wonderful holes! Rats are firm believers in having many entrances and exits. Such things make them very happy. We finally cut holes in the 3rd shelf level of the rat condo which sits between playstation west and playstation east, so they now have a thruway. This has been most popular. I then decided to give an old, cheap plastic set of drawers (3 drawers) to the rats as well, to the side of playstation east. There’s a hole in the top, and a hole in the front of each drawer, and a hole in the bottom of the first two drawers. There was much exploration and excitement in the studio last night.