Considering everything that we've ever had from walmart had to be replaced by something decent I don't want to throw away $20 times however I need. My mother bought us a sheet set from walmart and we made the mistake of washing before we used it so now we'll not get to use it since the stitching came apart. I'm not going to trust any co2 detector from walmart.

"fat kid on a cake", that's quite a rude comment. I posted here since there are a lot of firefighters EMT on who might know the right place to put one and how many, if you just want to put down "fat" people then I'm sure there are proper forums for that.