Line 6 of the Conditions right on your license states
The fauna listed below shall not be kept in the bedrooms or bathrooms of the licensees dwelling premises.
and as written in the 2002 Gazzet
Wildlife officers may inspect premises and herpetofauna
(1) A licensee must, when requested by a wildlife officer to do so,
allow the officer to inspect
(a) the pet herpetofauna to which the licence relates; and
(b) the place where the licensee keeps the pet herpetofauna.
(2) Subsection (1)(b) does not apply if the place where the pet
herpetofauna are kept is a bedroom or bathroom of a residential
premises, but in that case the licensee must bring the animal out
of that place to allow the officer to inspect it.
so basically from my understanding your not allowed to keep them in bed rooms or bathrooms, and when being inspected they are not allowed into your bedroom or bathroom.
2002 Gazette
http://www.dec.wa.gov.au/index2.php?option=com_docman&task=doc_view&gid=166&Itemid=1
2003 Gazette amendments to the 2002 one
http://www.dec.wa.gov.au/index2.php?option=com_docman&task=doc_view&gid=165&Itemid=7