I've quicked Seamus several times but he's such a mellow fellow that he just stood there as blood wicked up his leg, no big deal. Teaghan, on the other hand , is a diva. I did a tiny quick on her once, she screamed, then and there I decided to condition her to a dremel. I don't even have any clippers any more. She is very skittish, I took probably a month getting her used to it. I would place it on the couch and let her explore it, sniff it, etc. I fed her treats off it, I stood in a corner of the room and turned it on and off. This site is where I got all of my information about starting out right! http://www.doberdawn.com/doberdawn/dremel.html It was at least 3 weeks before I touched a nail. The time spent was well worth it! I'm on each nail maybe 3 seconds. If I need to I go back and do it more, but I don't hold it on too long at one time. I started out with a corded dremel, but after a few weeks I found it did such a great job that I decided to invest in a powerful cordless model. I use a Dremel 8200 with a Li-Ion battery. I can't stand pedipaws and the like, I find they're way underpowered except for small dogs with light nails. With a large dog, you need to hold it on too long to get it to cut, that heats the nail up too much. Here's a video I took of Teaghan a week or so ago.