Given it's a distant relative of Vegemite it's to be expected that Marmite would share one or two of its traits.
Which of course it does.
In particular the fact that many people have an unfinished jar lurking in the back of a cupboard.
How these jars end up like this is anyone's guess but it's obviously a problem as this new TV spot by Adam&Eve-DDB clearly shows.
Bizarrely this ad has resulted in more than 250 complaints to the Advertising Standards Authority in the UK.
That's a lot of pissed off people.