I do. My petty (utility) knives are much lighter and narrower, more agile than a Chef’s knife. My first was a left handed 150 mm (6 in.) that was serrated–making it single beveled: a Shun Classic utility knife. It took me about two years to figure out how to use it, since it seemed to “steer” in the wrong direction as I cut. Once I disregarded that it was serrated–and just used it–it helped a great deal as a partner to a Chef’s knife–way more versatile than a paring knife.
However, I recently decided to get the alternative: a non serrated double beveled version–which was and is available from Shun–but decided to get a Xinzuo Zhen 150 mm. Here they are, side by side:
What about you-got any petty knives?