Your thought experiment is phrased poorly so its "gotcha" reveal doesn't work.

Pet stores don't "sell out" of eggs, milk and bread because they don't stock them in the first place.

Your gotcha question would be technically true if it were presented as "The store you just entered doesn't have eggs, milk and bread in stock."

Which is still weasel words, but at least technically correct.

Your thought experiment is phrased poorly so it's "gotcha" reveal doesn't work.

Pet stores don't "sell out" of eggs, milk and bread because they don't stock them in the first place.

Your gotcha question would be technically true if it were presented as "The store you just entered doesn't have eggs, milk and bread in stock."

Which is still weasel words, but at least technically correct.