Carbon bars

I had a set of carbon fiber riser bars given me today but and it's a big but, they have a tiny tiny chip on the front about half way down, would i be correct in asuming that if i was to use them that they could snap and i could die or at least cause myself great injury?
hard to know without seeing them. Carbon is brittle, and when it fails, you will hurt youself. Personally, I would only consider carbon bars for XC. anything more freeridery, I'd stick to Alu....
He has moved on to tougher composites. Next month he is going to try and break stainless steel.