I have in all my previous years never had problems with cutting dog nails, it was not a hit, but they were fine with it.
When I got Minnie I could be allowed to cut her nails, but when I first cut one or two nails so they bled profusely, I was getting so sorry for her.
I bought a new nail clippers, so when they had to be cut again, I went in a little panic, sweating like a madman, and again it went wrong, blood everywhere.
I had read about small grinder, but was sure that it was Minnie who would go in panic.
I bought a grinder and spent half a day to introduction - then came the big moment where we have to try on the nails, I was sweating, but she took it
so well. 
So now we both have it so fine with arranging her nails

we do it 1-2 times a week.