The idea of renting them would be to relieve the owner of liability. You’d sign some release form and plug in the instructions and push the button yourself. In that way, they didn’t actually participate in the manufacture of whatever “evil” product that was made.
The slip-and-fall-lawyers would take the suits back to the plastic mfgrs, cad-cam designers and everyone up and down the line. The release form may/may not work in court. This is a whole ‘nother area of legal catfight we’re getting into in the digital age.
Popcorn?