I'm sure Paul is overreacting out of his own fear and anxiety about your dad's health and may even be feeling insecure about the amount of care he is going to have to provide for your dad. The steps for taking care of the bag sound easy but, it can be tricky due to the patient's build up of gas and wonky connectors. It's really hard on the patient and the caregiver when something goes wrong with it. (This from the experiences of many of my hospice clients and even some therapy clients).

Nerves are running high and patience low.

You definitely don't need to be with your dad 24 hours/day while he's in the hospital! Paul isn't likely to hear reason right now but you need to go ahead and TCB and do that help you relax and smile.
Glad you shared with us.
Btw...239 I love it!