Me: Why is the marmite in the fridge

Me: Why is the marmite in the fridge?
Son: Perhaps mum put it there to be near the butter? They're always used together, after all.
Me: Heather, did you put the marmite in the fridge?
Heather: No?! Why would I put the marmite in the fridge? I didn't even use the marmite today.
Son (clutching at straws now): We should put the marmite in the fridge.
Me: Do you like marmite that's been in the fridge?
Son: No, but it's near the butter.

So does anyone keep marmite in the fridge?