My dad has been grabbing hold of his caregivers on the arm or around the neck during transfers with a grip like a vise. He's bruised the caregivers and my mom. It's difficult to get him to let go. The crazy thing is that when the caregivers explain that he's hurting them, he apologizes. He's embarrassed because he really doesn't know what his hands are doing. The caregivers have to keep his fingernails very short so the nails don't cut into them. At times they have put my dad's winter gloves on him so he can't get that grip. Has anyone else experienced this? Is it alien hand?