When buying used camera bodies the shutter count gives you a good figure together with the external condition of what kind of usage the body experienced previously - assuming the shutter count is accurate. Is there a way of tampering with especially Canon DSLRs to reset or edit the shutter count present in the metadata? I'm not asking about edit the image file after it has been captured but rather making the camera itself produce false information? Of course the manufacturer can change this number but that's not what I'm asking for.
If there are no known methods I could relax a bit more when buying used gear.