Not I but nice bump; imho balls required to hold through the Covid-19 snafu.
Sometime between when you apply for a permit to fix your sidewalk, and you're cracking the "it's done god I love uncompensated labor that incurs a material cost - it's so gratifying" beer, please think of Sharkbiscuit's retirement, and tell him what you would have invested that money in.
Who knows. Maybe when the contractor puts you on hold you can come up with something. Maybe when your mind wanders when the contractor is at your place and charging you a fee for an assessment but on his phone jerking some other poor soul off, opportunity will occur to you. It could be a split-second moment of clarity after you've chugged the GWS D-Block Prison Formula Elk jizz rage juice and grabbed your shovel, but before your Barry Bonds hip/shoulder rotation stops and you roll your wrists over, crumple zoning the contractor's face into the back of his skull. Maybe as you're putting kitty litter around the gushing bloody neck stump in the garage, or as the seconds stretch into hours waiting to checkout with a dozen bags of quickrete at Home Depot, reading the packaging and making the mental adjustments for corpsecrete, that hot tip will take form and come to fruition. Keep me posted.
