The more I think about this the more angry I become.Example of the stupidity:
I recently went back to shaving with the old fashioned butterfly top safety razor , twisting the bottom part of the handle opens up the head for easy installation/removal of razor blades. If anyone has seen the excellent British TV series entitled Peaky Blinders you can plainly see the horrific damage that can be caused by these blades , my first time through airport security I was concerned that these blades might cause a problem but no.... not a problem.