Yes, a stroke, a prescription drug interaction, even a kidney infection are all good excuses to give an elderly useless eater a good solid beat-down.
True. My older neighbor was confused and acting very strangely in Las Vegas, she bumped into a parked car and then went in a casino in a very confused state, acting out of control. The casino called the police and the police took her to the hospital for mental evaluation and it was discovered her medication had caused it all. Thank goodness those police officers decided to find out what was wrong instead of jumping to conclusions that she was just drunk and belligerent.