Just heard my 1st shriek. Then heard a 2nd shriek. Came in & rat who'd been poking around at where the coroplast meets the floor had stopped trying to get through it & was instead leaving the area, then coming back but now looked at it like she was scared to go back to what she'd been doing, all the while taking breaks to nurse her right front paw. Panels were taped on the outside, to each other and the walls. I'll tape them to the floor now. I don't know is that blue masking tape rat safe? If not, then when I tape all on the inside tomorrow, I'll use clear packing tape, so they can be let out again.