This, from p. 365 of LEED 2009 Green Building Design and Construction (sentence fragment not mine): "Other reused material found on-site. Components that are retained and continue to serve their original function, such as door hardware, are eligible for this credit."

Should read, "are _not_ eligible", right? Everything I've read indicates that this type of material would certainly not qualify for MRc3.

If this is a real typo, it was not addressed in the 5/3/2010 addenda.