The ten year-old version of me suggested something similar (using a tennis racquet) to get mom’s ‘66 LeSabre warmed up before Church on Sundays. This was strictly because for some reason we always took the Buick to church instead of Dad’s much nicer ‘72 Oldsmobile, coupled with the fact that, unlike Mom who could deal with repeated stalls in the Buick, my Dad would go ballistic…. thus you have the worst possible combination of driver and vehicle every Sunday morning. And going to church no less! lol. I like to think my little suggestion made life MUCH easier (for a few minutes at least).