This became an issue when I was still in school and involved with a ski club. The ski area wanted a multi-page hold harmless contract, parents signed it. A student was injured, nearly fatally, due to a screw up by the ski company. It didn't take a good lawyer long to end up with a seven figure settlement. I would love to hear the opinion of a lawyer who currently deals with these type of issues.
I often wonder what would happen if you took a bit of time to sign your name in a manner that is nothing like your typical signature? Typically, the signing takes place with a desk clerk who is in a hurry, and just getting that step out of the way. If something does happen that is clearly the fault of the CG, how would it look in court, a year or two later? "Is this your signature?" No, it doesn't look like mine. "Is this document witnessed or notarized?" No. Hum, now what?