Cruzer / Keychain Incompatability?

In response to all the comments:  A lanyard can be cut.  Metal wire is only just a tad more difficult, but not by much. The twist tie w/plastic coating is a very good idea.  I have tried everything mentioned in all the posts.  Design flaw or deliberate, I will never again purchase a scandisk thumb drive. I registered to this forum just to make this comment.  Scan disk does not need my business.  That is all.