Speech pressure and AI

Speech pressure and AI So I’m not sure how true this is of every stutterer, but when I’m alone I am completely fluent. But on the way to work yesterday I tried to get Siri to play a system of a down song and I stuttered so hard saying the “hey ssssssssiri” part that she legit just ignored me. She’s not even a real person!! Why can’t I be fluent when talking to a bot? Is it because I imagine her as a person or it is just the pressure of saying something clearly? Aaaaaarrgh so frustrating. Anyone else have this experience?