Or do you just steer well clear of them?
I've tried on a few pairs from different shops and they just shorten my short legs further, make my thighs look ginormous, and make my ample arse look huge. DH laughed when he saw me in a pair (before stifling the guffaws), and he's usually my biggest ally when I go clothes shopping - I could wear a sack and he'd still say I looked beautiful, bless him.