Quite a few of these are because people are afraid to hold firm to what they want. Like #15 - that's just a big hell no. No need to be rude about it but just say "no - that's an important tradition I want to keep and video it."

TL,DR

To all MIL's out there. You're old. You're fat. You're freckled. You're saggy. Your day is past. You're done. Salvage some dignity and have a little consideration. It's not about you, you old b*tch.