The Vancouver Canucks have two fans — Sully and Force — who routinely dress like the Green Man from It's Always Sunny in Philadelphia at games. Outside of that activity, we assume they're fully functioning adults who possibly hold down jobs.
Nordy is the mascot for the Minnesota Wild and an avid observer of the human condition. As such, he himself dressed as the Green Man during last night's game against the Canucks.
Very clever, Nordy. Very clever indeed.