So I took my trip to Petco today to get Bones a mouse. I decided to look at the rats to see if they had any cool looking females. So I glance in, and the first thing I see a Large Male Rat. I figured they had maybe switched the way their setup was and moved the females to the top. I take a gander up top and see that there are 4 Large Male Rats in the top bin. Confused, I look back down and notice there are 4 Large Female Rats and 1 Large Male Rat in the bottom bin. Hmmmm, I bet they didn't plan this. I notify the cashier and she says to me "Well, they cleaned the tanks yesterday morning, so maybe none of the females got pregnant". I reply with "HAHAHAHAHA...Ok". More than 24 hours passed and nobody noticed that one of the rats and a little something extra underneath their tail? Wow...