My fiancé and I had discussed that we didn't want any of our attendants showing up to the ceremony high, drunk, or hungover. We are totally cool with them having alcohol at the reception, but we want everyone sober before and during the ceremony, which we both feel is a reasonable request (it's not like we are asking them to give up their drinking or smoking completely, just for a short period of time during part of one day - our day). We mentioned this casually to the few attendants this concern applied to when we asked them to be in our wedding party and they kind of shrugged it off. But when it was brought up again recently, they seemed completely offended that we would even think of asking them to abstain from alcohol or pot prior to the ceremony. We love all of our attendants dearly, but some of their habits and behaviors we could do without on our big day. What is the best way to respectfully tell them that this behavior on our wedding day is unacceptable to us and it would greatly offend us if they did not comply with our request? Or are we being totally unreasonable in expecting this of our wedding party?