i love Grissom. he always has something intelligent to say, i love how the CSI writers handled the speaking about the transgender community on "Ch-ch-ch-changes," an episode that it apparently from season 5. this was the last line of the episode:

"There are two types of male oysters, and one of them can change genders at will. And before man crawled out of the muck, maybe he had the same option. Maybe originally we were supposed to be able to switch genders, and
being born with just one sex ... is a mutation."

-gil grissom