Yes, there is. It's a shared (his & hers) headstone. His side says, "I told you I was sick." Hers says, "And I was sick of hearing it." I wrote about it here.

https://medium.com/crows-feet/funny-actual-epitaphs-they-got-in-the-last-word-ae049e40750b?sk=713fa9790cf1c89308ee648b05abf765

Thanks for reading and commenting, Micah!