True. I have a Rotterman: 1/2 Rottweiler, 1/2 Doberman. He will allow almost all human contact, but he WILL NOT allow me to mess with his feet. Fortunately, his breed chews their own nails, lol!
You just have to be a bit more innovative.
Please set up a camera to video yourself, and follow this 24 second video:
If you survive, please post the video on this thread!