My parents got mad that I wanted to work on Thanksgiving, so I sent them this e-mail. Working on Thanksgiving is very important to me. Eating the Thanksgiving meal is very triggering for me, and it is something I am very apprehensive about this holiday. I understand that you would like to have the entire family there, but I know it would be a bad idea to put myself in that situation. Even if we have the meal before I go to a shift it would help, so it is very important that I work on Thanksgiving or that we work together to come up with a way to make the meal non-triggering. Given the nature of Thanksgiving, I'm inclined to think that a non-triggering meal would ruin the holiday for the rest of the family.
So... currently I am adamant that I work on Thanksgiving if they give me a shift, but let me know your thoughts.
Their response was:
Ah, thank you for this explanation. Now I understand.
And I think I'll be working on Thanksgiving now!
How do you all explain the the triggers of holidays to your parents?