Apple Watch glass crack

I'm gauging whether my recent run in with Apple is an anomaly. I wore my apple watch on my left wrist. Recently woke up from a deep sleep to find my right index finger had been sliced open during the night - pretty gory, I'll save you the details. Anyway, it turns out the watch glass had a hair line fracture all the way around the face. Hardly noticeable to the eye, but sharp enough to slice through skin while I slept. Bizarre and gruesome.

Fast forward to taking it in to the local apple store - they told me it would cost $285 to fix the glass.

1. This has to be a design fault. Watch glass shouldn't break that easily - retracing my steps, I have no idea when/how this could have happened. It can't have been a particularly traumatizing bump.

2. This was clearly dangerous. Glass that can cut that deeply and while sleeping!? Whaaa..

3. The phone NEW was $420, so I'm finding it impossible to justify $285.

I'm certain this has to be a flaw in the glass itself, but the "factory" will determine whether the limited warranty covers it. Let's see.

Anyone else dealt with this? What options do we have? I loved my watch, but I can't justify the cost.