I never stutter on C words 99% of the time but

I never stutter on C words 99% of the time but This one time I was asking for a cup of water, and it caught me by surprise. I was like, "Can I get a c c cc c ccccc cup of water"? LMAOOOOOOOO! It caught me by surprise because usually I know when I'm gonna get stuck. What's wrong with me haha shit. Lowkey depressing to have this problem