Explain why this scenario requires definitive boundaries between the human services professional and his client. Situation: A human services professional, Bill, eagerly looked forward to attending his son’s band concert. When Bill and his wife arrived at the school, Bill was a bit dismayed to see one of his clients walk through the door at about the same time. His client, Sheila, tended to be difficult and was often unwilling to follow his suggestions for achieving goals. Sheila acknowledged Bill’s presence with a nod and a wave, and then walked toward him and his wife.