My MIL's funeral, which I planned, was an absolute fiasco. Relatives who I did not know even existed, showed up at the gravesite and yelled at me for not inviting them to the funeral. We live in a different state, and my DH and BIL were not close to these people, and never mentioned them to me, and I had no idea who they were.
My DH had written a four page story about my MIL, which I had e-mailed to the minister who would be giving the eulogy. The minister did not understand how to open his e-mail, and therefore never read the story, and knew nothing about my MIL. He tried to fake it on the day of the funeral, and mentioned that she was famous for her potato salad. We all looked at each other like "what potato salad??"
The worst part was the cemetery salesman. Prior to the funeral, he had tried to talk me into purchasing a family crypt for $36,000 where everyone's cremated remains would be put into a "niche". Many of my MIL's relatives were buried at the same cemetery, and he wanted to move them all into this crypt. When I pointed out that most of the relatives had not been cremated, he helpfully suggested they could be dug up and burned. For a fee, of course. When I mentioned that their living children might object, he assured me that they would not. Right.
On the day of the funeral, the cemetery salesman informed me that I had not purchased the correct size outer urn for my MIL's remains. When he sold me the outer urn over the phone, he never mentioned that they came in different sizes. He wanted me to give him $200 more right there and then at the funeral, and kept interrupting me as I was trying to placate the angry relatives who had shown up at the funeral. I kept ignoring him, and he finally went away.
The entire funeral was a complete fiasco. My MIL would have loved it!