In June I flew Fort McMurray (oilsands project) to Calgary and then red eye to Toronto.
In Calgary the security screener stole my two Jello chocolate pudding cups.
Yoghurt is allowed in similar sized containers so I am not sure what is so threatening about pudding. Being close to mid-night he may have just had the munchies but seeing that he had a uniform I didn't argue.
(100 meters off airport property these screeners are minor minions but give them a uniform and they are all powerful; double so if the uniform has epaulettes.)