Random Acts of Kindness

Not being one to fully know (or, perhaps, fully appreciate) English humor, I could never quite decide if Wallace was serious or joking. Help me out here, British folk. Perhaps some serious ideas and some not so?
Give an apple to your teacher.

Leave some fresh
fruit and vegetables
outside a student
house. They will
probably try and turn
it into beer, but at
least you tried.

Resist the urge to kill.