"That's a big nope from me." -- every cat ever
Finally, A Decent Butt-Mounted Cat Carrier

Because…okay I have absolutely no idea why (but hopefully just a college design project), this is a video of a cat carrier that unzips from the rear of a pair of pants, allowing a cat to be carried directly behind the owner’s ass. “But what did you have for lunch?” I imagine every cat worrying while it’s being reluctantly stuffed inside. Is it a good idea? Not unless you want to absentmindedly sit on your pet. I accidentally stepped on my dog’s paw the other week and she got so upset about it she puked shortly after. I still feel awful about it. Ten years from now I’ll still feel awful about it. I’ll probably think about it on my deathbed and speed my way into the tunnel. And, if life was a perfect fairy tale, she’d be right there on the other side waiting for me.