Do you ever get someone's name mixed up? Even though you know what their name is, the wrong name sticks in your memory?

I have certain people I've known for years and for some reason my brain doesn't want to remember their names, was left in a really awkward moment last year when two people, whom I couldn't remember their names both came at me at the same time. Had to say I was popping to the loo and will leave you two to introduce yourselves.