Originally Posted by humbird
We have an old fashioned Med. Cabinet. It is built into the wall, and has a little "slit" in the back that you can drop razor blades in. I put all those sharp things in that. Goes way down behind the wall, and will take forever to fill up! The only way the sharpies will ever harm anyone (or anything, unless we get a mouse!) is if someone remodels the bathroom and takes the wall down. That ain't gonna happen in MY lifetime!
Having removed those medicine cabinets from a bathroom, twice, I can tell you that there is a cross piece at the base of the cabinet on which all those nasty razor blades sit...filthy, rusty, and disgusting but still VERY sharp. Please reconsider your disposal method. A small sharps container from the drug store is less than $5.00 and will hold years worth of sewing sharps safely.