Did someone besides yourself/SO potty train your LO?

DH and I are going on a trip in November, my mom (and dad I guess lol) are watching the girls. We were texting about things I need to remember to send and she said potty seat and undies for both girls. I told her there was no way I was going to have my youngest (2.5) trained by then. She said she was going to do it...uuuhh ok then? Lol go for it! I was surprised but I guess if she wants to that's cool with me.

Who potty trained your LO?