lol, because i'm really short! and we can't have escapees. nobody in our building knows we have the rats and if they did i'm sure there would be hell to pay.
so i knew it would be easier for me than having to use a stool or something to reach the top bins, and i was afraid of them cascading down onto my head one day if i built it too high
That's funny because the only escapes I've had were from the bottom bin. Maybe they see how close they are to the ground and make a run for it. BTW, they all ran in to my freezer.