You won't be able to change their minds but at least at your house you can set limits for both the child an the parents. I'm old fashion in the sense that I still believe there is a time and place for spanking as a last resort because there are some things that are not negotiable, fixable, changeable, just has to be my way or else type of things. Safety is one area for sure where we do whatever it takes to keep a child from continuously going into an unsafe situation. But as I said it is the method of last resort and should not be used as the first or it totally loses it's effectiveness and that is when it escolates to abuse. My own kids knew when they had crossed that line in the sand and they certainly didnt' do it very often. We also have to remember at daycare that we have group support on our side meaning having a child sit out from his friends is far more effective than at home when made to simply sit for some reason. There is no visual support for the consequence of watching your friends still have fun. Making a distinction between what is normal and what is negative for this age might be part of the problem. Two year olds can be among the most annoying obnoxious creatures when they set their little minds to it, lol.