To trees, oxygen is just waste. Yeah. Think about it.
"Hey! Hey, Elm!"
"Yeah, Redwood? What is it?"
"Hey, you gotta help me! I was just releasing some oxygen and-"
"Dude! TMI, you know?"
"I know, I know! But listen, now I got this little cloud of oxygen sorta hanging on me-"
"I know! It's the worst! If only we trees didn't release oxygen as a waste product!"
"It's true. If we were like people, we could use Bidets and be happy. Instead, we have to contend with the complex nature of the atmosphere. Why, even one ill timed rainfall can release a terrible amount of petrichor."
"Ugh. I hate that smell. How do humans stand it? It's so gross if you're a tree!"
"They don't know any better, Redwood. They're too fixated on their short lives and the brief joy that a bidet brings them."