My spice and heat tolerance is about as low as can be. Just the hint of spice and heat, and it can turn my mouth into a fire pit. But, I've finally found a spicy food where I can actually enjoy the spice without experiencing pain and it is Popeye's spicy chicken.
Usually, I get mild. And then one day I was given spicy by mistake and did not notice until my first bite. That was a surprise to my taste buds. But my mouth didn't turn to fire and tears weren't streaming down my face, so I carried on eating. And I liked it. When I was finished eating, I didn't feel the need to nearly drown myself with water or soda. I could just calmly carry on sipping my Coke and enjoy the flavor of the spice.
I will not be going any higher on the Scoville scale, because that would surely end in the loss of my tongue.