Back in his day, kids used to walk to school uphill both ways — backward, with their legs tied together and while balancing a razor-sharp scimitar atop their head. Apparently, these entrepreneurial youths also used to knock on people's doors during blizzards and sub-zero temperatures in order to offer their shoveling services for a fiver… Next, they'll be telling us that Minecraft is evidence that the children yearn for the mines . It might be frightfully cold out, but that didn't stop this ent…