>>Wife sends her husband, a programmer, to the grocery:
>>
>>- Buy a pack of butter. If they have eggs, buy ten.
>>
>>He comes back with:
>>
>>- I bought ten packs of butter, because they did have eggs.
>>
>Did she send you back to get the eggs? < s >

No, I'm the guy from the other one:

"If she sends him to buy five things, and at the last minute adds two more, he will forget two out of the first five".

And we're not there yet:

She sends him to

"buy two things: bread and milk. Remember, two things: bread and milk."

He returns with a toothpaste.

"Are you Alzheimer's brother? I told you to buy two things: toothpaste and toothbrush"