... especially if one of them is Catwoman!
Here's a selection of illos of Batman and his oldest and most dedicated "frenemy." (Comics Trivia: On at least one of an infinite number of alternate reality Earths, were marrued after she gave up her thieving ways and he hung up the Batsuit. Their daughter grew up to be the suerpheroine, Huntress. That Bat and Cat are portrayed in the last three drawings.)
Click here to read reviews of graphic novels starring Catwoman over at Cinema Steve.