OH my

Your poor baby!!! My girls have gotten nicked once or twice each, but they are wiggly, and it wasn't severe enough to require stitches. They put surgical glue on the nick and good as new. But to the BONE

?!?! WOW!
Any groomer, imho, that WON'T let you stay and watch---is to be avoided at all costs. I'm very fortunate that the place where I take my girls has an open door policy and they let you hang out, if you want to. I usually don't any more, as my two act up if I'm there