You're joking but the death of his parents is known to be Batman's weakness. Villains have taken advantage of this already.
Which would be worse - to live as a monster, or to die as a good man?

Let it go (Frozen pun not intended).
Oh for Christ Sakes I was so going to link you a Frozen video.
To make a great film you need three things - the script, the script and the script -Alfred Hitchcock

The first kind of SNL skit I thought of would be a parody of the assassination of Osama Bin Laden - not old, thought about it back when the movie came out.
Have Seal Team 6 going through Bin Laden's compound. They get in the room with Osama and the lead member is about to shoot. It was reported that some of his wives were in the room.
Lead member put the red dot on Osama's head
Osama: sodiabaosdisoiforeign language adljfsdfi, Martha.
Lead member lowers gun
Lead member: Martha? How do you know that name?
Osama: Why it is the name of my 9th wife whom I love dearly.
Lead member removes face mask and is Ben Affleck (who is hosting SNL)
Lead member: My mother's name was Martha.
Long uncomfortable silence where Ben and Osama seem to communicate mutual feelings of loss with their eyes.
Another ST6 member: Get out the way, bitch!
ST6 member shoots Osama in the head.

Thank you!
Honestly, the Martha jokes are so old. Yeah, it was funny for a while, but now the joke's been squeezed dry.
Let it go (Frozen pun not intended).
How does it feel to be deconstructed?

Oh ffs the Martha word is a one time slap in the face to Batman

Martha has a worse effect on Batman than Kryptonite has on Superman. Superman is at least seen flying with Kryptonite with Martha not only does it stop Batman dead it converts him into your friend.
To make a great film you need three things - the script, the script and the script -Alfred Hitchcock