Nokia :: N97 Camera Activating By Itself

friend has this problem. he tells me that sometime while the phone is in its leather pouch the camera turns on by itself. he has no idea until he takes it out to use. it has a lock code on it. it only happens when its in the pouch. he didn't face that problem before he bought the pouch.have anybody else experienced this problem. i am thinking its the pouch that is somehow activating the camera. the phone fits snug in it. what do you guys think is the cause.