Do you stutter speaking in a different accent or language?

Do you stutter speaking in a different accent or language? I'm Australian and I can speak a bit of German, and for the first year or so of learning it in school, I didn't stutter when speaking or reading it, but as I became more comfortable, the stutter returned. Also, as a teenager if I spoke in an American accent (for fun), no stutter. Until I became comfortable doing it / did it more often, and then the stutter returned. I remember being very disappointed both times. Anyone else?