I don't know but I hate how the feeling to **** gets stronger as you get closer to the bathroom. Especially when I have to waste time unlocking the door with the keys. I feel like I'm gonna release on the spot.
When you get nervous your body releases adrenaline, which can effect your digestive system and other parts of your body (eyes, hands, heart etc). This is part of the body's fight or flight response. So the urge to defecate could be the body's way of getting rid of a load that would slow it down.
