I just picked up a sage 2 in like new condition through a Reddit forum, carried it for about 2 weeks now, and just realized that if the blade is locked open and I push down on it by hand with medium force that the lock fails and blade swings closed.. I'm so bummed. I've been so in love with this knife until right now. I called spyderco and they said it's pretty rare, but it happens and to send it in for evaluation. Has anyone else had this problem that could elaborate?