RE: I'll call your bluff
I must agree with one of your comments.
As a juror in a criminal DUI trial over a decade ago, we were NOT aware that the defendant had previous convictions for DUI.
Based on the evidence presented in this case, and IN THIS CASE ONLY, we found the guy guilty. (P.S. The video of his staggering to "walk the line" did it. Only AFTER we rendered the guilty verdict, did we find out that he had FOUR previous DUI convictions. As we left the courtroom, if anyone had any doubts, that revelation (4 previous convictions) must have put them to rest.