What kind of clients were you attracting that you had to put up with that much BS? Contracts help with the ass suing.
To be completely fair and in full disclosure, I shot back in the day of film. There was no "chimping", not "OK, let me look at the lights to make sure I have everything just right..." There was no auto-focus, no TTL flashes, etc... so it was much more "check everything 5 times"...
I always always always used contacts and shot sheets that listed EVERY expected shot, and did a checklist as we knocked them off... but you just get into some really pain in the ass situations, especially when you have a bridezilla or momzilla, or when you have parents of the bride or bridegroom who are not on speaking terms...
I live in a small town, in a small county, and I shot weddings here and in the surrounding counties, so my clients were "every day folks..." To date, I've had four brides I shot ask me to shoot their children's weddings, so I guess I did OK.
Around here, it's not like there's much of a choice on who you take... you take the people who are getting married, or you don't. Just like on their end, who is the videographer? Joe. Who shoots the weddings? Sherri. Who's going to be the DJ? Rick. We have one grocery store, so that's where you go if you want groceries... or you drive 50 miles to go to Walmart.
This may not be a normal situation for most, but I assure you that you don't have to live in flyovercountry to meet momzilla. She's everywhere.