Quote Originally Posted by SuperSpeedRacer View Post
Ah, is that why it isn't recommended? I breadknifed my razors on the bottom of a pint glass.
It's just not recommended for beginners, mainly because it's used when it isn't needed. The reason being, bread knifing is used in restorations, not honing, and should only really be used to remove large chips, heavy damage, etc.

What you did wasn't breadknifing though, it's what's referred to as "killing" an edge.