I use naga based sauces, they are not for the faint hearted.
They don't destroy the taste, but they can have a very real effect on people. If you have problems with Tabasco don't do the Naga thing as they can be well over 20 times stronger.
I used a teaspoonfull in a pound of beef in a chilli I was making, that was too much for one person at the table and we quite like spicey foods.