OOOOH! OUCH! I am SO sorry that happened! No solutions for you except that there are some sort of "almost" chain-mail gloves out there, but I don't know what they're called. I'm sure someone on the Board can give you the name.
I have to make a conscious effort to stay out of my rotary cutter's "line of fire" or I surely would do the same thing! The worst thing I've done so far is sew my finger-on the longarm! That hurt, too! Good luck.