Alot of times I also made such mistakes and it were children who corrected me.
One of my 5 years old cousin started offering namaz with me, when she saw me praying.
When I was doing dua she also raised her hands and asked me," what should I pray from Allah to do for me ?
Thinking of her to be a child I said " Lots of choclates, money, dolls, car...etc"
She said "NO!!"
I said, " Ok, pray to Allah to bless your parents with a long and healthy life"
She said, " YES! that is good!"
Aww what a cutie .. MA