Did you ever think that in a past life Alec was an old woman with ninety cats who was always yelling at the neighborhood kids to get off her lawn? Because I do,

quite often

This quote is suggesting that someone named Alec may have lived in a different life before this one. The quote suggests that in this past life, Alec was an old woman who had a lot of cats and was always getting mad at children who were playing near her home. The phrase is meant to be humorous, but it is also used to show that it is possible that Alec could have had a different life before this one.