Responses
Or he could have a dental problem and just doesn't like going to dentist. So he is hiding it bc he is scared of dentist and its embarassing to tell this to his grand kids.. (⌒▽⌒)
That's possible too
Guess made based on how the grandpa is acting and the lack of tragedy tag - Grandpa has constipation and hemorrhoids, both pretty common around his age. He doesn't wanna eat because its painful to shit but is fine with drinking