Before you yell at someone for making a joke, just remember:
WWTD?
WHAT WOULD TONY DO
I am pretty certain that Tony would never make a joke about a dead person/someone who is going to die soon.
Also, that's a stupid way to look at it.
"My dog is going to die soon..."
"*insert stupid joke about it here*"
"Hey, that's messed up, dude!"
"YEA BUT HE WOOD'VE DON IT 2!1!!!"