Even getting something back will be better than a kick in the you know what's.
It's tough though because I've had people try it on...one guy bought a pair of Hayes Mags from me that were perfect. A couple of weeks later I got an email to say they were leaking. The guy had blatantly been riding them and crashed or had been fiddling. I know they were spot in because the Hayes guru from Hotlines devices them for me just before I sold them.
2015 Stanton Ti Switchback
2006 Specialized Demo 8
2013 Specialized Allez Sport
1999 Santa Cruz Chameleon
1994 Cannnondale Beast of the East (rebuild still in progress)