Signature required yeah right.
It is pitiful.
The whole point is to safeguard valuable products and "sensitive" items.
Which fails abjectly, when staff find themselves incapable or unwilling of fulfilling the duties for which they were hired.
I wonder what the companies do when confronted with flatly-incontestable video/audio recorded proof of such failures. (Rhetorical Q, mostly. My suspicion is they're most likely to 'round file' the problem.)