Opal didn't like leftovers.
When I was young, she would tell us kids to eat all our food or there would be rain the next day and we couldn't go out to play. That reasoning kind of didn't work when in 70's California we were having a drought,
so it changed to
The Chinese believe that leftovers are warmed over death.
Strangely, that one worked...especially when she ordered Chinese food from Ernie's Kitchen.
On a side note, the delivery guy drove a Volkswagon bug when he delivered. I have always loved bugs...maybe that's why.