I did that except I wasn't looking and instead of grabbing the baking tray I grabbed the grill element in my electric oven which must have been over 200 degrees at the time. That hurt a bit.
I can't remember what it was now, but I do remember that it was wrapped in cling film. Several minutes later I heard my housemate shouting from the kitchen; I walked in and found the place thick with yellow smoke where the cling film had melted.
The microwave itself was almost black inside and got chucked away as it stank of burnt plastic.
i made a cranberry sauce sarnie thinking it was jam