I've been using a grinder for years. If I used the clippers, every one of you would able to hear him scream!
And that's before I actually even start clipping! Just seeing them sets him off! He doesn't like the grinder either, but will at least allow that, with breaks.
Susan, you got that right!!! I have to pick him up and THEN go get the grinder rather than the reverse, otherwise he'll hide in places I can't reach. He's crafty, that one!