A helpful resource for understanding those with cognitive impairment.
http://www.msktc.org/tbi/factsheets/Cognitive-Problems-After-Traumatic-Brain-Injury
http://www.msktc.org/tbi/factsheets/Cognitive-Problems-After-Traumatic-Brain-Injury
It is important as a practitioner to be able to set boundaries and limits. However, it is also a critical skill for a lot of clients as those who do not or cannot set boundaries/limits usually suffer emotionally and mentally. The following website is a good overview.
http://psychcentral.com/lib/10-way-to-build-and-preserve-better-boundaries/0007498
http://psychcentral.com/lib/10-way-to-build-and-preserve-better-boundaries/0007498