Bill Fischer wrote:

[Y]ou can't leave supper on the table for more then an hour
and you can't leave pieces of apple out or banana because it turns
black/brown and is garbage ...

After a reasonable amount of time when your child makes it plain that
he's done eating, clear the table. No more food until next meal. No
snacks. No treats. And go on about your business.

Were you MY mom?


Tsu

--
To doubt everything or to believe everything
are two equally convenient solutions; both
dispense with the necessity of reflection.
- Jules Henri Poincaré