Political correctness has gone too far! You have to say "cognitive decline" rather than "Alzheimer's ridden shitbag"!
Cognitive Decline Jokes
How can you tell Donald Trump is old and demented?
He can't distinguish between tanned people and cockroaches!
I would've made a joke about Alzheimer's, too bad I forgot about it...
I want to make a joke about old age, but I'm too senile to finish it.