New personal policies because I'm already fed up

I admit I have a low BS tolerance. It's probably due to personal trauma but that's a whole other discussion for a different subreddit; but it has led to me wanting to rewrite my policies to be strict and super EXPLICIT.

Regarding death. Unless a school I work at has a conflicting policy on this, I will begin to require absolute proof. Proof will be the physical newspaper obituary, or a the bereavement card from funeral home and proof of relationship. And it will only be for immediate family and grandparents unless the deceased was a guardian.

I know it sounds callous but unfortunately this is weakness students have been exploiting and I'm tired of it. I'm sure most of them are a lie. Also, I've had students wildly embellish their tragedies at the end of semester after grades are posted wanting an incomplete. 1) I'm no longer getting paid after the semester is over to keep up with your work and grade your papers and change your grade, and 2) you're likely lying or wildly exaggerating and I don't have time for this.

I'm not asking for advice but for those of you also sick of the incessant lies, what have you done to nip it in the bud?