Responding to the stress that builds up as a result of responding to challenging behaviour can be challenging in and of itself. Securicare offer McGee’s 5-step model for de-stressing. McGee* (2001) offers practical guidance to overcome this stress guilt in the form of an acronym: GUILT. He says:

Give yourself
Uninterrupted
Indulgent
Leisure and pleasure
Time at least twice a week.
http://www.securicare.com/blog/challenging-behaviour-dont-forget-to-look-after-yourself/