So today was another mistake, as my wife Brenda says, when she took Caesar to his play area ( garden size tub) which already held the remains of many brown paper bags. Instead of allowing Caesar to step down on the side of the tub or allowing him to directly step into the tub, Brenda was first going to move to the side some of the paper rubble so Caesar could have his new paper bag on the bottom of the tub. As Brenda says it was her mistake to touch his paper rubble (his nest). Caesar immediately bit Brenda on the base of the thumb bringing blood. She immediately shouted "NO, bite, NO, hurt Brenda" several times and took him to his sleeping cage in his private room and covered him up repeating again"NO, bite, NO, hurt Brenda"several times. Caesar is very social and wants to be with people. After about 10 minutes, Brenda went to Caesar, uncovered his cage and showed him her thumb saying Caesar hurt Brenda, NO, bite Brenda. Current plan is to clean up the garden tub playground and not return Caesar to it for a period of time. Your thoughts, experiences and suggestions are welcome.