That's strange, that's not what the course material says that I teach...Maybe I've been doing it wrong
Thanks for butchering my post in quote Mr Moderator
Maybe you have been doing it wrong but in doing a bit of background research it has highlighted an interesting difference in approach between the US and at least one other site.
Picking a training provider at random

and selecting two locations Covers might be familiar with I checked their offerings:
- The US - RABQSA accredited course
- The UK - it doesn't say anything about accreditation but I believe it is (or can be) IRCA
In the US apparently in the same time your experienced trainers can enable delegates to:
Understand the requirements of the BS OHSAS 18001:2007 standard
while in the UK course no such claims are made.
Just to complete the picture (don't you just hate these quality people who want to get to root cause!

) I thought it would be interesting to compare what the accreditation organizations say about the courses their providers deliver. The RAB QSA criteria are
here and the bit about standard is:
3.1 Standards
A student who successfully completes the course shall be able to:
3.1.1 Describe the continuing process of development of OHSMS standards and ISO 19011, the impact that these developments may have on the audit process, and the need for auditors to keep up to date;
3.1.2 Explain the intent and requirement of each clause of the relevant OHSMS standard;
3.1.3 Describe the documentation required by the relevant OHSMS standard;
3.1.4 Evaluate the differing requirements for documentation in a variety of situations and understand the difference between documents and records;
3.1.5 Identify the audit evidence needed to demonstrate conformity to the requirements of the relevant OHSMS standard;
3.1.6 Evaluate the effectiveness of an entire OHSMS;
3.1.7 Describe the difference between legal compliance and conformity with management systems standards, and the significance of these terms when conducting audits;
3.1.8 Understand occupational health and safety legislation and regulation processes, including the relationship of federal,state and local agencies, and where to obtain resource information (e.g., web sites).
IRCA, on the other hand have their course criteria
here and expect the following prior knowledge:
Prior knowledge: We recommend that students have a basic knowledge of OH&S issues and the requirements of the current version of (BS) OHSAS 18001 before they start this course.
It goes on to provide similar learning outcomes.
So I'll leave it to the rest of the thread as to whether a trainer can pass on knowledge of OHSAS 18001 in a 4 or 5 day training course.
My experience of trained and 'competent' auditors tells me different.