I think that scene was done for the "humorous" factor, and to let David/Tuc shine, as he always does.
You're right, it's not like that document will hold up in court. But David was hilarious - I just love him. I don't know how any of his costars can get through a scene with him without busting out laughing - the "mummy" probably busted his bandages! I would love to be a fly on the wall when they film with him.
David/Tuc is one of the main reasons I still watch OLTL. I am primarily AMC. But all the years of Vicki/Nicki & now Jess/Tess has really BORED me of it all. I see Vicki passing down her SELF-RIGHTOUSNESS to Jessica and Natalie. But I digress, when David told the "mummy" to not forget to dot the "I" I was hysterical. There's no I in HUGH HUGHES. And I was a burn technician for several years and someone that burned would have splints on their hands and medicated to the hilt. And let's not forget be tubed since breathing would be so hard due to smoke damage to the lungs which is usually more fatal than the surface burns.