@georgetakei they already did so:
A2. I'd love to know this. I've seen good #BagAndDrag setups, and they usually benefit from having a back rack with a platform below that can hold up a front wheel. Or the platform even has slots in it so the front wheel can rest in there without sliding forward or backwards. I've hacked together ways of taking my kid's bike home but I'd like to figure out something that is a little more reliable.
Sometimes you need to take another cycle (without a rider) with you. @SRLevine asks:
Q2. Do you have suggestions for how to tow a bike on another bike home without specialized equipment (ie: in an emergency or maybe access to some basic ties and things, but no custom trailer parts). Assuming the second bike is a similar size to the first (not a much smaller kids bike).
Kevin Karhan 
Phil (ascentale)
😀🚲