What would you do?

So here's the situation...

You are starving. You've just rocked a bike ride without any fuel in the tank and its time to replenish. So you stop at your local Jimmy Johns and get a sub. You sit down at your table at home and start attacking it like a pack of hyenas on a zebra carcass. About 1/3rd of the way in, something's a little off. Maybe the taste, maybe the smell, perhaps the mayo you slathered on there. What do you do?

I pounded that sub like Joey Chestnut on a hot dog and washed it down with some Diet Coke. We'll see if I regret that!