Quality knife - Spyderco Tenacious 3.39in Pocket Folding Knife

I didn't want to spend allot since I lose knives within a year. This knife has very smooth action and is made from quality material. It's nice that it comes with both a serrated and straight edge. I needed a knife with a belt clip and carry it in the small of my back. The reason I didn't give it 5 stars is because the blade can open slightly on its own. This could tear a whole in my furniture or car seat. I am not sure how or if this can be corrected.