[danso]

And your supervisor knew of your intent to deceive the company when they made the approval? And if so, why would they make the approval unless they too wanted to be fired?

Sorry to be pedantic about a hypothetical, but I think it's necessary to consider the specifics of the actual case. Assuming this process involves something akin to a codebase commit, where the contents of the approved change can be clearly seen by the approvers, it raises the question of what sanctions her colleagues faced if Spiers' violation was so severe as to result in near immediate termination.

(because obviously, in your hypothetical situation, your supervisor would be fired if they knowingly approved a deceptive work expense)