The widespread nursing interpretation of clinical supervision followin
g the accepted definitions of Butterworth and Faugier, elides refineme
nt of boundaries between personal and professional development and gro
wth. In so doing, nursing interpretation confuses the differences betw
een two similar processes and ultimately distorts the purpose of clini
cal supervision. Ln nursing supervision, the patient can become lost,
thus perpetuating the avoidance of anxiety in intimate therapeutic wor
k, originally described by Menzies in 1959. While a tension naturally
exists between the two processes, this paper demonstrates the utter im
portance of working within the tension of boundaries that define the t
riadic situation of supervisor, supervisee and patient. When supervisi
on is accepted as personal development, the triadic situation may dete
riorate into a dyadic one between supervisor and supervisee only, sign
ificantly altering the relationship to the point where the supervisee
becomes a patient. Parallel process, ordinarily reflecting the therape
utic nurse-patient relationship in the supervisory one, may then becom
e merely a process running parallel to the supervisee, while utilizing
the patient as a source of material for personal growth. This paper d
emonstrates through Faugier's casework material the necessity of defin
ing boundaries and the difficulties associated in maintaining them, ra
ther than prosaically declaring that 'supervision is not therapy'.