I went outside cut the thread off my right hand pocket and slipped the knife into it unclipped and obviously tip up. I sat and read for a while and when I went back inside I lifted the flap on my pocket to retrieve the knife and was quite surprised and a little shocked to find the knife was open, at very least a couple of inches.

Anyhow, this is the first time ever I’ve had a knife open in my pocket and for the life of me can’t understand how or why the knife would and did open. At best all I would have done was cross and uncross my legs sitting in a chair reading.
Quite bizarre and a bit of an eye opener for me and I’d be interested to hear of any similar experiences.