oh, yes. my beloved husband called me his ex-wife's name more than once (and once during sex...oh, yeah...he did). I cried and carried on and stomped and acted like a complete psychobitch over that slip of the tongue.
The last time he did...I looked at him and said 'from now on, every time you call me XXX, I will be taking $1000 out of your bank account and paying myself punitive damages'.
darn it, he won't call me that for nuthin now! I was planning a nice vacation for myself. :P