How do you feel if someone you don't know hops on your bike and pushes it around a parking lot then parks it somewhere else without asking and without you being there? I don't know anyone who thinks that is cool, cute or funny. Did it harm your bike? No. Did it violate your rights to property and freedom. YES There is an expectation of the actions of others not infringing upon you or your property. Does that mean I come out gun drawn and blow them off the seat? No, but it certainly might warrant a firm warning, some verbal intimidation and calling the police if they don't stop. My rights to freedom do not trump yours and visa versa. It is a give and take balancing act that requires laws and boundries to keep morons like you from taking liberties at my or others expense.