I've spent the last week "preparing" Casey for her first Dremel session. I took it out and turned it on for a few days, then I spent some time Dremeling my own nails, let her near it to sniff and investigate, but today, she actually had to lay down and have the tool vibrate on her body.
She was not a happy camper, lol. She tried to get up twice, but I just gently pushed her back down and gave a firm "no." After that, as always, she resigned herself to her fate. Of course, she got a bunch of treats and praise, and all she had to do was lay still for 10 seconds.
What a tough life for a puppy dog :)