I have taken out a smallish chunk of my finger w/ my rotary cutter. Just being careless, I guess. I was so surprised I couldn't believe it, but as there was quite a bit of blood... Ugh, must stop before I get woozy again!
My horror story, though was in the making of a quilt for my only niece. My brother, her daddy, is a dairy farmer, and I was making Tammy Tadd's "Hey Cow." The top was finished, I'd sandwiched it and was trimming off the excess before quilting. And... somehow... I cut a hole in the top! I thought I was going to be sick.
My fix was to put a piece of fusible through the hole between the top & the batting (Warm & Natural), fused it, then quilted carefully over it to make sure it wouldn't come up. If anyone should look closely, they'd be able to see it.