Lab Safety Puns

I work security at a large lab. We have a safety rating of green/yellow/red that we need to ask incoming workers. This occurred today when my co-worker greeted an incoming employee.

Co-worker: “Hello. What kind of work are you doing today? Green, yellow, or red work?”

Employee: “I’m just going to my office to water my plants.”

Me: “That’s definitely green work.”

Co-worker: “Did you have to?”

Me: “Sorry. That joke was low hanging fruit.”

Co-worker: “Really?”

Me: “Guess I’m stacking them up like cord wood today.”