"Why are you green?"
The robot glanced down at itself then up at it's human supervisor, "I am only mostly green; which is the main color of the casing I applied to myself today."
"Yes but why did you make these changes?"
"Many of my components were sourced from Ireland."
"Do I have to keep repeating my question?"
"No?"
The human sighed, "Is there a reason you chose to do this today?"
"It's an old Earth tradition!"
"Ah. Carry on then."